Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2041746247', 'doi': 'https://doi.org/10.1016/s0002-9394(14)70004-2', 'title': 'Excimer Retreatment of Regression After Photorefractive Keratectomy', 'display_name': 'Excimer Retreatment of Regression After Photorefractive Keratectomy', 'publication_year': 1994, 'publication_date': '1994-04-01', 'ids': {'openalex': 'https://openalex.org/W2041746247', 'doi': 'https://doi.org/10.1016/s0002-9394(14)70004-2', 'mag': '2041746247', 'pmid': 'https://pubmed.ncbi.nlm.nih.gov/8154526'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1016/s0002-9394(14)70004-2', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S50016660', 'display_name': 'American Journal of Ophthalmology', 'issn_l': '0002-9394', 'issn': ['0002-9394', '1879-1891'], 'is_oa': False, 'is_in_doaj': False, 'is_indexed_in_scopus': True, '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/A5113467690', 'display_name': 'Daniel Epstein', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I28166907', 'display_name': 'Karolinska Institutet', 'ror': 'https://ror.org/056d84691', 'country_code': 'SE', 'type': 'education', 'lineage': ['https://openalex.org/I28166907']}], 'countries': ['SE'], 'is_corresponding': False, 'raw_author_name': 'Daniel Epstein', 'raw_affiliation_strings': ["St. Erik's Eye Hospital/Karolinska Institute, Stockholm, Sweden."], 'affiliations': [{'raw_affiliation_string': "St. Erik's Eye Hospital/Karolinska Institute, Stockholm, Sweden.", 'institution_ids': ['https://openalex.org/I28166907']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5109812727', 'display_name': 'Björn Tengroth', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I28166907', 'display_name': 'Karolinska Institutet', 'ror': 'https://ror.org/056d84691', 'country_code': 'SE', 'type': 'education', 'lineage': ['https://openalex.org/I28166907']}], 'countries': ['SE'], 'is_corresponding': False, 'raw_author_name': 'Björn Tengroth', 'raw_affiliation_strings': ["St. Erik's Eye Hospital/Karolinska Institute, Stockholm, Sweden."], 'affiliations': [{'raw_affiliation_string': "St. Erik's Eye Hospital/Karolinska Institute, Stockholm, Sweden.", 'institution_ids': ['https://openalex.org/I28166907']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5051689665', 'display_name': 'Per Fagerholm', 'orcid': 'https://orcid.org/0000-0002-6767-4769'}, 'institutions': [{'id': 'https://openalex.org/I28166907', 'display_name': 'Karolinska Institutet', 'ror': 'https://ror.org/056d84691', 'country_code': 'SE', 'type': 'education', 'lineage': ['https://openalex.org/I28166907']}], 'countries': ['SE'], 'is_corresponding': False, 'raw_author_name': 'Per Fagerholm', 'raw_affiliation_strings': ["St. Erik's Eye Hospital/Karolinska Institute, Stockholm, Sweden."], 'affiliations': [{'raw_affiliation_string': "St. Erik's Eye Hospital/Karolinska Institute, Stockholm, Sweden.", 'institution_ids': ['https://openalex.org/I28166907']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5108426698', 'display_name': 'Heléne Hamberg‐Nyström', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I28166907', 'display_name': 'Karolinska Institutet', 'ror': 'https://ror.org/056d84691', 'country_code': 'SE', 'type': 'education', 'lineage': ['https://openalex.org/I28166907']}], 'countries': ['SE'], 'is_corresponding': False, 'raw_author_name': 'Helene Hamberg-Nyström', 'raw_affiliation_strings': ["St. Erik's Eye Hospital/Karolinska Institute, Stockholm, Sweden."], 'affiliations': [{'raw_affiliation_string': "St. Erik's Eye Hospital/Karolinska Institute, Stockholm, Sweden.", 'institution_ids': ['https://openalex.org/I28166907']}]}], 'institution_assertions': [], 'countries_distinct_count': 1, 'institutions_distinct_count': 1, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': {'value': 4390, 'currency': 'USD', 'value_usd': 4390, 'provenance': 'doaj'}, 'apc_paid': None, 'fwci': 7.352, 'has_fulltext': True, 'fulltext_origin': 'ngrams', 'cited_by_count': 46, 'citation_normalized_percentile': {'value': 0.745793, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 91, 'max': 92}, 'biblio': {'volume': '117', 'issue': '4', 'first_page': '456', 'last_page': '461'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10563', 'display_name': 'Corneal surgery and disorders', 'score': 0.9996, 'subfield': {'id': 'https://openalex.org/subfields/2741', 'display_name': 'Radiology, Nuclear Medicine and Imaging'}, 'field': {'id': 'https://openalex.org/fields/27', 'display_name': 'Medicine'}, 'domain': {'id': 'https://openalex.org/domains/4', 'display_name': 'Health Sciences'}}, 'topics': [{'id': 'https://openalex.org/T10563', 'display_name': 'Corneal surgery and disorders', 'score': 0.9996, 'subfield': {'id': 'https://openalex.org/subfields/2741', 'display_name': 'Radiology, Nuclear Medicine and Imaging'}, 'field': {'id': 'https://openalex.org/fields/27', 'display_name': 'Medicine'}, 'domain': {'id': 'https://openalex.org/domains/4', 'display_name': 'Health Sciences'}}, {'id': 'https://openalex.org/T10250', 'display_name': 'Glaucoma and retinal disorders', 'score': 0.9956, 'subfield': {'id': 'https://openalex.org/subfields/2731', 'display_name': 'Ophthalmology'}, 'field': {'id': 'https://openalex.org/fields/27', 'display_name': 'Medicine'}, 'domain': {'id': 'https://openalex.org/domains/4', 'display_name': 'Health Sciences'}}, {'id': 'https://openalex.org/T11828', 'display_name': 'Corneal Surgery and Treatments', 'score': 0.9912, 'subfield': {'id': 'https://openalex.org/subfields/2741', 'display_name': 'Radiology, Nuclear Medicine and Imaging'}, 'field': {'id': 'https://openalex.org/fields/27', 'display_name': 'Medicine'}, 'domain': {'id': 'https://openalex.org/domains/4', 'display_name': 'Health Sciences'}}], 'keywords': [{'id': 'https://openalex.org/keywords/emmetropia', 'display_name': 'Emmetropia', 'score': 0.94413924}, {'id': 'https://openalex.org/keywords/excimer', 'display_name': 'Excimer', 'score': 0.5317425}], 'concepts': [{'id': 'https://openalex.org/C259533', 'wikidata': 'https://www.wikidata.org/wiki/Q193933', 'display_name': 'Dioptre', 'level': 3, 'score': 0.97079813}, {'id': 'https://openalex.org/C2780603455', 'wikidata': 'https://www.wikidata.org/wiki/Q565832', 'display_name': 'Photorefractive keratectomy', 'level': 3, 'score': 0.968506}, {'id': 'https://openalex.org/C169126688', 'wikidata': 'https://www.wikidata.org/wiki/Q1310580', 'display_name': 'Emmetropia', 'level': 4, 'score': 0.94413924}, {'id': 'https://openalex.org/C71924100', 'wikidata': 'https://www.wikidata.org/wiki/Q11190', 'display_name': 'Medicine', 'level': 0, 'score': 0.7795025}, {'id': 'https://openalex.org/C118487528', 'wikidata': 'https://www.wikidata.org/wiki/Q161437', 'display_name': 'Ophthalmology', 'level': 1, 'score': 0.6711842}, {'id': 'https://openalex.org/C2781135284', 'wikidata': 'https://www.wikidata.org/wiki/Q470427', 'display_name': 'Refractive error', 'level': 3, 'score': 0.6270814}, {'id': 'https://openalex.org/C74561354', 'wikidata': 'https://www.wikidata.org/wiki/Q901723', 'display_name': 'Excimer', 'level': 3, 'score': 0.5317425}, {'id': 'https://openalex.org/C2778257484', 'wikidata': 'https://www.wikidata.org/wiki/Q555066', 'display_name': 'Visual acuity', 'level': 2, 'score': 0.49367365}, {'id': 'https://openalex.org/C119767625', 'wikidata': 'https://www.wikidata.org/wiki/Q618211', 'display_name': 'Optometry', 'level': 1, 'score': 0.36514625}, {'id': 'https://openalex.org/C120665830', 'wikidata': 'https://www.wikidata.org/wiki/Q14620', 'display_name': 'Optics', 'level': 1, 'score': 0.07834312}, {'id': 'https://openalex.org/C520434653', 'wikidata': 'https://www.wikidata.org/wiki/Q38867', 'display_name': 'Laser', 'level': 2, 'score': 0.053306103}, {'id': 'https://openalex.org/C121332964', 'wikidata': 'https://www.wikidata.org/wiki/Q413', 'display_name': 'Physics', 'level': 0, 'score': 0.0}], 'mesh': [{'descriptor_ui': 'D003315', 'descriptor_name': 'Cornea', 'qualifier_ui': 'Q000601', 'qualifier_name': 'surgery', 'is_major_topic': True}, {'descriptor_ui': 'D053685', 'descriptor_name': 'Laser Therapy', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': True}, {'descriptor_ui': 'D009216', 'descriptor_name': 'Myopia', 'qualifier_ui': 'Q000601', 'qualifier_name': 'surgery', 'is_major_topic': True}, {'descriptor_ui': 'D000328', 'descriptor_name': 'Adult', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D003315', 'descriptor_name': 'Cornea', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D005260', 'descriptor_name': 'Female', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D005500', 'descriptor_name': 'Follow-Up Studies', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D006801', 'descriptor_name': 'Humans', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D053685', 'descriptor_name': 'Laser Therapy', 'qualifier_ui': 'Q000009', 'qualifier_name': 'adverse effects', 'is_major_topic': False}, {'descriptor_ui': 'D008297', 'descriptor_name': 'Male', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D008875', 'descriptor_name': 'Middle Aged', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D009216', 'descriptor_name': 'Myopia', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D009216', 'descriptor_name': 'Myopia', 'qualifier_ui': 'Q000209', 'qualifier_name': 'etiology', 'is_major_topic': False}, {'descriptor_ui': 'D011183', 'descriptor_name': 'Postoperative Complications', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D012029', 'descriptor_name': 'Refraction, Ocular', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D012086', 'descriptor_name': 'Reoperation', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D014792', 'descriptor_name': 'Visual Acuity', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}], 'locations_count': 2, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1016/s0002-9394(14)70004-2', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S50016660', 'display_name': 'American Journal of Ophthalmology', 'issn_l': '0002-9394', 'issn': ['0002-9394', '1879-1891'], 'is_oa': False, 'is_in_doaj': False, 'is_indexed_in_scopus': True, '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/8154526', '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_indexed_in_scopus': 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': 9, 'referenced_works': ['https://openalex.org/W1494021554', 'https://openalex.org/W1947793024', 'https://openalex.org/W2024882918', 'https://openalex.org/W2028247030', 'https://openalex.org/W2030008244', 'https://openalex.org/W2060128931', 'https://openalex.org/W2373043232', 'https://openalex.org/W2405173540', 'https://openalex.org/W329718832'], 'related_works': ['https://openalex.org/W58398981', 'https://openalex.org/W2913489405', 'https://openalex.org/W2415004098', 'https://openalex.org/W2412205529', 'https://openalex.org/W2093325439', 'https://openalex.org/W2078782693', 'https://openalex.org/W2041746247', 'https://openalex.org/W2010994582', 'https://openalex.org/W1989557359', 'https://openalex.org/W1965435149'], 'abstract_inverted_index': None, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2041746247', 'counts_by_year': [{'year': 2018, 'cited_by_count': 1}], 'updated_date': '2025-01-21T21:47:27.726111', 'created_date': '2016-06-24'}