Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2154042658', 'doi': 'https://doi.org/10.1016/j.joen.2013.07.023', 'title': 'Antibiotic Resistance and Capacity for Biofilm Formation of Different Bacteria Isolated from Endodontic Infections Associated with Root-filled Teeth', 'display_name': 'Antibiotic Resistance and Capacity for Biofilm Formation of Different Bacteria Isolated from Endodontic Infections Associated with Root-filled Teeth', 'publication_year': 2013, 'publication_date': '2013-09-07', 'ids': {'openalex': 'https://openalex.org/W2154042658', 'doi': 'https://doi.org/10.1016/j.joen.2013.07.023', 'mag': '2154042658', 'pmid': 'https://pubmed.ncbi.nlm.nih.gov/24461408'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1016/j.joen.2013.07.023', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S90605627', 'display_name': 'Journal of Endodontics', 'issn_l': '0099-2399', 'issn': ['0099-2399', '1878-3554'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320990', 'host_organization_name': 'Elsevier BV', 'host_organization_lineage': ['https://openalex.org/P4310320990'], 'host_organization_lineage_names': ['Elsevier BV'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': ['crossref', 'pubmed'], 'open_access': {'is_oa': False, 'oa_status': 'closed', 'oa_url': None, 'any_repository_has_fulltext': False}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5004345689', 'display_name': 'Ali Al‐Ahmad', 'orcid': 'https://orcid.org/0000-0001-8769-599X'}, 'institutions': [{'id': 'https://openalex.org/I161046081', 'display_name': 'University of Freiburg', 'ror': 'https://ror.org/0245cg223', 'country_code': 'DE', 'type': 'education', 'lineage': ['https://openalex.org/I161046081']}], 'countries': ['DE'], 'is_corresponding': True, 'raw_author_name': 'Ali Al-Ahmad', 'raw_affiliation_strings': ['Department of Operative Dentistry and Periodontology, Albert-Ludwigs-University, Freiburg, Germany'], 'affiliations': [{'raw_affiliation_string': 'Department of Operative Dentistry and Periodontology, Albert-Ludwigs-University, Freiburg, Germany', 'institution_ids': ['https://openalex.org/I161046081']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5052576115', 'display_name': 'Hawnaz Ameen', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I161046081', 'display_name': 'University of Freiburg', 'ror': 'https://ror.org/0245cg223', 'country_code': 'DE', 'type': 'education', 'lineage': ['https://openalex.org/I161046081']}], 'countries': ['DE'], 'is_corresponding': False, 'raw_author_name': 'Hawnaz Ameen', 'raw_affiliation_strings': ['Department of Operative Dentistry and Periodontology, Albert-Ludwigs-University, Freiburg, Germany'], 'affiliations': [{'raw_affiliation_string': 'Department of Operative Dentistry and Periodontology, Albert-Ludwigs-University, Freiburg, Germany', 'institution_ids': ['https://openalex.org/I161046081']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5109312635', 'display_name': 'Klaus Pelz', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I4210140742', 'display_name': 'Institute of Medical Microbiology and Hygiene', 'ror': 'https://ror.org/04xqmb911', 'country_code': 'DE', 'type': 'facility', 'lineage': ['https://openalex.org/I4210140742']}], 'countries': ['DE'], 'is_corresponding': False, 'raw_author_name': 'Klaus Pelz', 'raw_affiliation_strings': ['Department of Hygiene and Microbiology, Albert-Ludwigs-University, Freiburg, Germany'], 'affiliations': [{'raw_affiliation_string': 'Department of Hygiene and Microbiology, Albert-Ludwigs-University, Freiburg, Germany', 'institution_ids': ['https://openalex.org/I4210140742']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5009881542', 'display_name': 'Lamprini Karygianni', 'orcid': 'https://orcid.org/0000-0002-7893-0393'}, 'institutions': [{'id': 'https://openalex.org/I161046081', 'display_name': 'University of Freiburg', 'ror': 'https://ror.org/0245cg223', 'country_code': 'DE', 'type': 'education', 'lineage': ['https://openalex.org/I161046081']}], 'countries': ['DE'], 'is_corresponding': False, 'raw_author_name': 'Lamprini Karygianni', 'raw_affiliation_strings': ['Department of Operative Dentistry and Periodontology, Albert-Ludwigs-University, Freiburg, Germany'], 'affiliations': [{'raw_affiliation_string': 'Department of Operative Dentistry and Periodontology, Albert-Ludwigs-University, Freiburg, Germany', 'institution_ids': ['https://openalex.org/I161046081']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5017057522', 'display_name': 'Annette Wittmer', 'orcid': 'https://orcid.org/0000-0002-8069-9127'}, 'institutions': [{'id': 'https://openalex.org/I4210140742', 'display_name': 'Institute of Medical Microbiology and Hygiene', 'ror': 'https://ror.org/04xqmb911', 'country_code': 'DE', 'type': 'facility', 'lineage': ['https://openalex.org/I4210140742']}], 'countries': ['DE'], 'is_corresponding': False, 'raw_author_name': 'Annette Wittmer', 'raw_affiliation_strings': ['Department of Hygiene and Microbiology, Albert-Ludwigs-University, Freiburg, Germany'], 'affiliations': [{'raw_affiliation_string': 'Department of Hygiene and Microbiology, Albert-Ludwigs-University, Freiburg, Germany', 'institution_ids': ['https://openalex.org/I4210140742']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5029004340', 'display_name': 'Annette Anderson', 'orcid': 'https://orcid.org/0000-0002-4489-1939'}, 'institutions': [{'id': 'https://openalex.org/I161046081', 'display_name': 'University of Freiburg', 'ror': 'https://ror.org/0245cg223', 'country_code': 'DE', 'type': 'education', 'lineage': ['https://openalex.org/I161046081']}], 'countries': ['DE'], 'is_corresponding': False, 'raw_author_name': 'Annette C. Anderson', 'raw_affiliation_strings': ['Department of Operative Dentistry and Periodontology, Albert-Ludwigs-University, Freiburg, Germany'], 'affiliations': [{'raw_affiliation_string': 'Department of Operative Dentistry and Periodontology, Albert-Ludwigs-University, Freiburg, Germany', 'institution_ids': ['https://openalex.org/I161046081']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5091117448', 'display_name': 'Bettina Spitzmüller', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I161046081', 'display_name': 'University of Freiburg', 'ror': 'https://ror.org/0245cg223', 'country_code': 'DE', 'type': 'education', 'lineage': ['https://openalex.org/I161046081']}], 'countries': ['DE'], 'is_corresponding': False, 'raw_author_name': 'Bettina Spitzmüller', 'raw_affiliation_strings': ['Department of Operative Dentistry and Periodontology, Albert-Ludwigs-University, Freiburg, Germany'], 'affiliations': [{'raw_affiliation_string': 'Department of Operative Dentistry and Periodontology, Albert-Ludwigs-University, Freiburg, Germany', 'institution_ids': ['https://openalex.org/I161046081']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5008583921', 'display_name': 'Elmar Hellwig', 'orcid': 'https://orcid.org/0000-0003-1880-5256'}, 'institutions': [{'id': 'https://openalex.org/I161046081', 'display_name': 'University of Freiburg', 'ror': 'https://ror.org/0245cg223', 'country_code': 'DE', 'type': 'education', 'lineage': ['https://openalex.org/I161046081']}], 'countries': ['DE'], 'is_corresponding': False, 'raw_author_name': 'Elmar Hellwig', 'raw_affiliation_strings': ['Department of Operative Dentistry and Periodontology, Albert-Ludwigs-University, Freiburg, Germany'], 'affiliations': [{'raw_affiliation_string': 'Department of Operative Dentistry and Periodontology, Albert-Ludwigs-University, Freiburg, Germany', 'institution_ids': ['https://openalex.org/I161046081']}]}], 'institution_assertions': [], 'countries_distinct_count': 1, 'institutions_distinct_count': 2, 'corresponding_author_ids': ['https://openalex.org/A5004345689'], 'corresponding_institution_ids': ['https://openalex.org/I161046081'], 'apc_list': {'value': 3790, 'currency': 'USD', 'value_usd': 3790, 'provenance': 'doaj'}, 'apc_paid': None, 'fwci': 11.536, 'has_fulltext': True, 'fulltext_origin': 'ngrams', 'cited_by_count': 131, 'citation_normalized_percentile': {'value': 0.924314, 'is_in_top_1_percent': False, 'is_in_top_10_percent': True}, 'cited_by_percentile_year': {'min': 98, 'max': 99}, 'biblio': {'volume': '40', 'issue': '2', 'first_page': '223', 'last_page': '230'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10536', 'display_name': 'Endodontics and Root Canal Treatments', 'score': 0.9999, 'subfield': {'id': 'https://openalex.org/subfields/3504', 'display_name': 'Oral Surgery'}, 'field': {'id': 'https://openalex.org/fields/35', 'display_name': 'Dentistry'}, 'domain': {'id': 'https://openalex.org/domains/4', 'display_name': 'Health Sciences'}}, 'topics': [{'id': 'https://openalex.org/T10536', 'display_name': 'Endodontics and Root Canal Treatments', 'score': 0.9999, 'subfield': {'id': 'https://openalex.org/subfields/3504', 'display_name': 'Oral Surgery'}, 'field': {'id': 'https://openalex.org/fields/35', 'display_name': 'Dentistry'}, 'domain': {'id': 'https://openalex.org/domains/4', 'display_name': 'Health Sciences'}}, {'id': 'https://openalex.org/T11363', 'display_name': 'Dental Radiography and Imaging', 'score': 0.99, 'subfield': {'id': 'https://openalex.org/subfields/3504', 'display_name': 'Oral Surgery'}, 'field': {'id': 'https://openalex.org/fields/35', 'display_name': 'Dentistry'}, 'domain': {'id': 'https://openalex.org/domains/4', 'display_name': 'Health Sciences'}}, {'id': 'https://openalex.org/T10257', 'display_name': 'Oral microbiology and periodontitis research', 'score': 0.9833, 'subfield': {'id': 'https://openalex.org/subfields/3506', 'display_name': 'Periodontics'}, 'field': {'id': 'https://openalex.org/fields/35', 'display_name': 'Dentistry'}, 'domain': {'id': 'https://openalex.org/domains/4', 'display_name': 'Health Sciences'}}], 'keywords': [{'id': 'https://openalex.org/keywords/actinomyces-naeslundii', 'display_name': 'Actinomyces naeslundii', 'score': 0.4237023}], 'concepts': [{'id': 'https://openalex.org/C89423630', 'wikidata': 'https://www.wikidata.org/wiki/Q7193', 'display_name': 'Microbiology', 'level': 1, 'score': 0.8345964}, {'id': 'https://openalex.org/C58123911', 'wikidata': 'https://www.wikidata.org/wiki/Q467410', 'display_name': 'Biofilm', 'level': 3, 'score': 0.75826573}, {'id': 'https://openalex.org/C501593827', 'wikidata': 'https://www.wikidata.org/wiki/Q12187', 'display_name': 'Antibiotics', 'level': 2, 'score': 0.60749966}, {'id': 'https://openalex.org/C86803240', 'wikidata': 'https://www.wikidata.org/wiki/Q420', 'display_name': 'Biology', 'level': 0, 'score': 0.51869285}, {'id': 'https://openalex.org/C94665300', 'wikidata': 'https://www.wikidata.org/wiki/Q63391344', 'display_name': 'Antibiotic resistance', 'level': 3, 'score': 0.48043844}, {'id': 'https://openalex.org/C2777458120', 'wikidata': 'https://www.wikidata.org/wiki/Q422273', 'display_name': 'Clindamycin', 'level': 3, 'score': 0.46250197}, {'id': 'https://openalex.org/C2992397963', 'wikidata': 'https://www.wikidata.org/wiki/Q189790', 'display_name': 'Anaerobic bacteria', 'level': 3, 'score': 0.42520824}, {'id': 'https://openalex.org/C2778206844', 'wikidata': 'https://www.wikidata.org/wiki/Q3911265', 'display_name': 'Actinomyces naeslundii', 'level': 4, 'score': 0.4237023}, {'id': 'https://openalex.org/C174802600', 'wikidata': 'https://www.wikidata.org/wiki/Q12190', 'display_name': 'Penicillin', 'level': 3, 'score': 0.4192808}, {'id': 'https://openalex.org/C523546767', 'wikidata': 'https://www.wikidata.org/wiki/Q10876', 'display_name': 'Bacteria', 'level': 2, 'score': 0.32168806}, {'id': 'https://openalex.org/C54355233', 'wikidata': 'https://www.wikidata.org/wiki/Q7162', 'display_name': 'Genetics', 'level': 1, 'score': 0.0}], 'mesh': [{'descriptor_ui': 'D000900', 'descriptor_name': 'Anti-Bacterial Agents', 'qualifier_ui': 'Q000494', 'qualifier_name': 'pharmacology', 'is_major_topic': True}, {'descriptor_ui': 'D018441', 'descriptor_name': 'Biofilms', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': True}, {'descriptor_ui': 'D003788', 'descriptor_name': 'Dental Pulp Diseases', 'qualifier_ui': 'Q000382', 'qualifier_name': 'microbiology', 'is_major_topic': True}, {'descriptor_ui': 'D024881', 'descriptor_name': 'Drug Resistance, Bacterial', 'qualifier_ui': 'Q000502', 'qualifier_name': 'physiology', 'is_major_topic': True}, {'descriptor_ui': 'D006090', 'descriptor_name': 'Gram-Negative Bacteria', 'qualifier_ui': 'Q000502', 'qualifier_name': 'physiology', 'is_major_topic': True}, {'descriptor_ui': 'D006094', 'descriptor_name': 'Gram-Positive Bacteria', 'qualifier_ui': 'Q000502', 'qualifier_name': 'physiology', 'is_major_topic': True}, {'descriptor_ui': 'D019553', 'descriptor_name': 'Tooth, Nonvital', 'qualifier_ui': 'Q000382', 'qualifier_name': 'microbiology', 'is_major_topic': True}, {'descriptor_ui': 'D000190', 'descriptor_name': 'Actinomyces', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D000190', 'descriptor_name': 'Actinomyces', 'qualifier_ui': 'Q000502', 'qualifier_name': 'physiology', 'is_major_topic': False}, {'descriptor_ui': 'D000190', 'descriptor_name': 'Actinomyces', 'qualifier_ui': 'Q000187', 'qualifier_name': 'drug effects', 'is_major_topic': False}, {'descriptor_ui': 'D016924', 'descriptor_name': 'Actinomyces viscosus', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D016924', 'descriptor_name': 'Actinomyces viscosus', 'qualifier_ui': 'Q000502', 'qualifier_name': 'physiology', 'is_major_topic': False}, {'descriptor_ui': 'D016924', 'descriptor_name': 'Actinomyces viscosus', 'qualifier_ui': 'Q000187', 'qualifier_name': 'drug effects', 'is_major_topic': False}, {'descriptor_ui': 'D000658', 'descriptor_name': 'Amoxicillin', 'qualifier_ui': 'Q000494', 'qualifier_name': 'pharmacology', 'is_major_topic': False}, {'descriptor_ui': 'D000658', 'descriptor_name': 'Amoxicillin', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D000900', 'descriptor_name': 'Anti-Bacterial Agents', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D002939', 'descriptor_name': 'Ciprofloxacin', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D002939', 'descriptor_name': 'Ciprofloxacin', 'qualifier_ui': 'Q000494', 'qualifier_name': 'pharmacology', 'is_major_topic': False}, {'descriptor_ui': 'D002981', 'descriptor_name': 'Clindamycin', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D003788', 'descriptor_name': 'Dental Pulp Diseases', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D004318', 'descriptor_name': 'Doxycycline', 'qualifier_ui': 'Q000494', 'qualifier_name': 'pharmacology', 'is_major_topic': False}, {'descriptor_ui': 'D004318', 'descriptor_name': 'Doxycycline', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D024881', 'descriptor_name': 'Drug Resistance, Bacterial', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D013293', 'descriptor_name': 'Enterococcus faecalis', 'qualifier_ui': 'Q000502', 'qualifier_name': 'physiology', 'is_major_topic': False}, {'descriptor_ui': 'D013293', 'descriptor_name': 'Enterococcus faecalis', 'qualifier_ui': 'Q000187', 'qualifier_name': 'drug effects', 'is_major_topic': False}, {'descriptor_ui': 'D013293', 'descriptor_name': 'Enterococcus faecalis', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D024841', 'descriptor_name': 'Fluoroquinolones', 'qualifier_ui': 'Q000494', 'qualifier_name': 'pharmacology', 'is_major_topic': False}, {'descriptor_ui': 'D024841', 'descriptor_name': 'Fluoroquinolones', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D005578', 'descriptor_name': 'Fosfomycin', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D005578', 'descriptor_name': 'Fosfomycin', 'qualifier_ui': 'Q000494', 'qualifier_name': 'pharmacology', 'is_major_topic': False}, {'descriptor_ui': 'D005839', 'descriptor_name': 'Gentamicins', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D005839', 'descriptor_name': 'Gentamicins', 'qualifier_ui': 'Q000494', 'qualifier_name': 'pharmacology', 'is_major_topic': False}, {'descriptor_ui': 'D006090', 'descriptor_name': 'Gram-Negative Bacteria', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D006090', 'descriptor_name': 'Gram-Negative Bacteria', 'qualifier_ui': 'Q000187', 'qualifier_name': 'drug effects', 'is_major_topic': False}, {'descriptor_ui': 'D006094', 'descriptor_name': 'Gram-Positive Bacteria', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D006094', 'descriptor_name': 'Gram-Positive Bacteria', 'qualifier_ui': 'Q000187', 'qualifier_name': 'drug effects', 'is_major_topic': False}, {'descriptor_ui': 'D006801', 'descriptor_name': 'Humans', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D052197', 'descriptor_name': 'Lactobacillus fermentum', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D052197', 'descriptor_name': 'Lactobacillus fermentum', 'qualifier_ui': 'Q000502', 'qualifier_name': 'physiology', 'is_major_topic': False}, {'descriptor_ui': 'D052197', 'descriptor_name': 'Lactobacillus fermentum', 'qualifier_ui': 'Q000187', 'qualifier_name': 'drug effects', 'is_major_topic': False}, {'descriptor_ui': 'D000077266', 'descriptor_name': 'Moxifloxacin', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D010400', 'descriptor_name': 'Penicillin G', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D010400', 'descriptor_name': 'Penicillin G', 'qualifier_ui': 'Q000494', 'qualifier_name': 'pharmacology', 'is_major_topic': False}, {'descriptor_ui': 'D010403', 'descriptor_name': 'Penicillin Resistance', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D018720', 'descriptor_name': 'Prevotella', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D018720', 'descriptor_name': 'Prevotella', 'qualifier_ui': 'Q000502', 'qualifier_name': 'physiology', 'is_major_topic': False}, {'descriptor_ui': 'D018720', 'descriptor_name': 'Prevotella', 'qualifier_ui': 'Q000187', 'qualifier_name': 'drug effects', 'is_major_topic': False}, {'descriptor_ui': 'D011424', 'descriptor_name': 'Propionibacterium', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D011424', 'descriptor_name': 'Propionibacterium', 'qualifier_ui': 'Q000502', 'qualifier_name': 'physiology', 'is_major_topic': False}, {'descriptor_ui': 'D011424', 'descriptor_name': 'Propionibacterium', 'qualifier_ui': 'Q000187', 'qualifier_name': 'drug effects', 'is_major_topic': False}, {'descriptor_ui': 'D012293', 'descriptor_name': 'Rifampin', 'qualifier_ui': 'Q000494', 'qualifier_name': 'pharmacology', 'is_major_topic': False}, {'descriptor_ui': 'D012293', 'descriptor_name': 'Rifampin', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D013295', 'descriptor_name': 'Streptococcus mutans', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D013295', 'descriptor_name': 'Streptococcus mutans', 'qualifier_ui': 'Q000502', 'qualifier_name': 'physiology', 'is_major_topic': False}, {'descriptor_ui': 'D013295', 'descriptor_name': 'Streptococcus mutans', 'qualifier_ui': 'Q000187', 'qualifier_name': 'drug effects', 'is_major_topic': False}, {'descriptor_ui': 'D013753', 'descriptor_name': 'Tetracycline Resistance', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D019553', 'descriptor_name': 'Tooth, Nonvital', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D020713', 'descriptor_name': 'Vancomycin Resistance', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}], 'locations_count': 2, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1016/j.joen.2013.07.023', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S90605627', 'display_name': 'Journal of Endodontics', 'issn_l': '0099-2399', 'issn': ['0099-2399', '1878-3554'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320990', 'host_organization_name': 'Elsevier BV', 'host_organization_lineage': ['https://openalex.org/P4310320990'], 'host_organization_lineage_names': ['Elsevier BV'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, {'is_oa': False, 'landing_page_url': 'https://pubmed.ncbi.nlm.nih.gov/24461408', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4306525036', 'display_name': 'PubMed', 'issn_l': None, 'issn': None, 'is_oa': False, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/I1299303238', 'host_organization_name': 'National Institutes of Health', 'host_organization_lineage': ['https://openalex.org/I1299303238'], 'host_organization_lineage_names': ['National Institutes of Health'], 'type': 'repository'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}], 'best_oa_location': None, 'sustainable_development_goals': [], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 47, 'referenced_works': ['https://openalex.org/W1834267459', 'https://openalex.org/W1968865765', 'https://openalex.org/W1973426781', 'https://openalex.org/W1974722196', 'https://openalex.org/W1977972074', 'https://openalex.org/W1980169292', 'https://openalex.org/W1982689238', 'https://openalex.org/W1988749516', 'https://openalex.org/W1989603874', 'https://openalex.org/W1993319393', 'https://openalex.org/W1994227222', 'https://openalex.org/W1996384188', 'https://openalex.org/W2001914583', 'https://openalex.org/W2002883922', 'https://openalex.org/W2006957838', 'https://openalex.org/W2018778348', 'https://openalex.org/W2022601912', 'https://openalex.org/W2033799002', 'https://openalex.org/W2036193173', 'https://openalex.org/W2057039898', 'https://openalex.org/W2062030121', 'https://openalex.org/W2062374558', 'https://openalex.org/W2068686611', 'https://openalex.org/W2068847308', 'https://openalex.org/W2076081031', 'https://openalex.org/W2083559421', 'https://openalex.org/W2088156758', 'https://openalex.org/W2090540974', 'https://openalex.org/W2091911972', 'https://openalex.org/W2101036178', 'https://openalex.org/W2102129606', 'https://openalex.org/W2106682070', 'https://openalex.org/W2109710139', 'https://openalex.org/W2121754157', 'https://openalex.org/W2137988480', 'https://openalex.org/W2140759481', 'https://openalex.org/W2149378510', 'https://openalex.org/W2149898918', 'https://openalex.org/W2152660331', 'https://openalex.org/W2152853342', 'https://openalex.org/W2164930107', 'https://openalex.org/W2165658595', 'https://openalex.org/W2167232620', 'https://openalex.org/W2168053689', 'https://openalex.org/W2171690028', 'https://openalex.org/W3148002691', 'https://openalex.org/W603616946'], 'related_works': ['https://openalex.org/W4205948127', 'https://openalex.org/W3149087468', 'https://openalex.org/W2150941600', 'https://openalex.org/W2103594628', 'https://openalex.org/W2100048220', 'https://openalex.org/W2087173012', 'https://openalex.org/W2080871586', 'https://openalex.org/W2061195394', 'https://openalex.org/W2025052505', 'https://openalex.org/W1993363566'], 'abstract_inverted_index': None, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2154042658', 'counts_by_year': [{'year': 2024, 'cited_by_count': 6}, {'year': 2023, 'cited_by_count': 9}, {'year': 2022, 'cited_by_count': 7}, {'year': 2021, 'cited_by_count': 16}, {'year': 2020, 'cited_by_count': 12}, {'year': 2019, 'cited_by_count': 19}, {'year': 2018, 'cited_by_count': 11}, {'year': 2017, 'cited_by_count': 16}, {'year': 2016, 'cited_by_count': 13}, {'year': 2015, 'cited_by_count': 16}, {'year': 2014, 'cited_by_count': 5}], 'updated_date': '2025-01-12T19:06:32.690103', 'created_date': '2016-06-24'}