Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2607338625', 'doi': 'https://doi.org/10.3382/ps/pex088', 'title': 'Effect of chlorine treatment on inhibition of E. coli serogroup O2 incorporation into 7-day-old biofilm on polyvinylchloride surface', 'display_name': 'Effect of chlorine treatment on inhibition of E. coli serogroup O2 incorporation into 7-day-old biofilm on polyvinylchloride surface', 'publication_year': 2017, 'publication_date': '2017-04-17', 'ids': {'openalex': 'https://openalex.org/W2607338625', 'doi': 'https://doi.org/10.3382/ps/pex088', 'mag': '2607338625', 'pmid': 'https://pubmed.ncbi.nlm.nih.gov/28419339'}, 'language': 'en', 'primary_location': {'is_oa': True, 'landing_page_url': 'https://doi.org/10.3382/ps/pex088', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S133896805', 'display_name': 'Poultry Science', 'issn_l': '0032-5791', 'issn': ['0032-5791', '1525-3171'], 'is_oa': True, 'is_in_doaj': True, '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': 'cc-by-nc-nd', 'license_id': 'https://openalex.org/licenses/cc-by-nc-nd', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': ['crossref', 'pubmed'], 'open_access': {'is_oa': True, 'oa_status': 'hybrid', 'oa_url': 'https://doi.org/10.3382/ps/pex088', 'any_repository_has_fulltext': False}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5109736883', 'display_name': 'P. Maharjan', 'orcid': None}, 'institutions': [], 'countries': ['US'], 'is_corresponding': True, 'raw_author_name': 'P. Maharjan', 'raw_affiliation_strings': ['Department of Poultry Science, Center of Excellence for Poultry Science, University of Arkansas, Fayetteville 72701'], 'affiliations': [{'raw_affiliation_string': 'Department of Poultry Science, Center of Excellence for Poultry Science, University of Arkansas, Fayetteville 72701', 'institution_ids': []}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5046250069', 'display_name': 'Shatovisha Dey', 'orcid': 'https://orcid.org/0000-0003-3837-481X'}, 'institutions': [{'id': 'https://openalex.org/I78715868', 'display_name': 'University of Arkansas at Fayetteville', 'ror': 'https://ror.org/05jbt9m15', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I78715868']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'S. Dey', 'raw_affiliation_strings': ['Department of Biological Sciences, University of Arkansas, Fayetteville 72701', 'Program in Cell and Molecular Biology, University of Arkansas, Fayetteville 72701'], 'affiliations': [{'raw_affiliation_string': 'Program in Cell and Molecular Biology, University of Arkansas, Fayetteville 72701', 'institution_ids': ['https://openalex.org/I78715868']}, {'raw_affiliation_string': 'Department of Biological Sciences, University of Arkansas, Fayetteville 72701', 'institution_ids': ['https://openalex.org/I78715868']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5111997821', 'display_name': 'G.R. Huff', 'orcid': None}, 'institutions': [], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'G. Huff', 'raw_affiliation_strings': ['USDA-ARS Poultry Production and Product Safety Research, University of Arkansas, Fayetteville 72701'], 'affiliations': [{'raw_affiliation_string': 'USDA-ARS Poultry Production and Product Safety Research, University of Arkansas, Fayetteville 72701', 'institution_ids': []}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5072025456', 'display_name': 'Wen Zhang', 'orcid': 'https://orcid.org/0000-0001-6631-6209'}, 'institutions': [{'id': 'https://openalex.org/I78715868', 'display_name': 'University of Arkansas at Fayetteville', 'ror': 'https://ror.org/05jbt9m15', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I78715868']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'W. Zhang', 'raw_affiliation_strings': ['Department of Civil Engineering, University of Arkansas, Fayetteville, 72701'], 'affiliations': [{'raw_affiliation_string': 'Department of Civil Engineering, University of Arkansas, Fayetteville, 72701', 'institution_ids': ['https://openalex.org/I78715868']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5084929699', 'display_name': 'Grace Phillips', 'orcid': None}, 'institutions': [], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'G.K. Phillips', 'raw_affiliation_strings': ['Department of Poultry Science, Center of Excellence for Poultry Science, University of Arkansas, Fayetteville 72701'], 'affiliations': [{'raw_affiliation_string': 'Department of Poultry Science, Center of Excellence for Poultry Science, University of Arkansas, Fayetteville 72701', 'institution_ids': []}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5112019212', 'display_name': 'S.E. Watkins', 'orcid': None}, 'institutions': [], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'S. Watkins', 'raw_affiliation_strings': ['Department of Poultry Science, Center of Excellence for Poultry Science, University of Arkansas, Fayetteville 72701'], 'affiliations': [{'raw_affiliation_string': 'Department of Poultry Science, Center of Excellence for Poultry Science, University of Arkansas, Fayetteville 72701', 'institution_ids': []}]}], 'institution_assertions': [], 'countries_distinct_count': 1, 'institutions_distinct_count': 1, 'corresponding_author_ids': ['https://openalex.org/A5109736883'], 'corresponding_institution_ids': [], 'apc_list': {'value': 2000, 'currency': 'USD', 'value_usd': 2000, 'provenance': 'doaj'}, 'apc_paid': {'value': 2000, 'currency': 'USD', 'value_usd': 2000, 'provenance': 'doaj'}, 'fwci': 0.306, 'has_fulltext': True, 'fulltext_origin': 'ngrams', 'cited_by_count': 9, 'citation_normalized_percentile': {'value': 0.603878, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 84, 'max': 85}, 'biblio': {'volume': '96', 'issue': '8', 'first_page': '2862', 'last_page': '2870'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10593', 'display_name': 'Bacterial biofilms and quorum sensing', 'score': 0.9986, 'subfield': {'id': 'https://openalex.org/subfields/1312', 'display_name': 'Molecular Biology'}, 'field': {'id': 'https://openalex.org/fields/13', 'display_name': 'Biochemistry, Genetics and Molecular Biology'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}, 'topics': [{'id': 'https://openalex.org/T10593', 'display_name': 'Bacterial biofilms and quorum sensing', 'score': 0.9986, 'subfield': {'id': 'https://openalex.org/subfields/1312', 'display_name': 'Molecular Biology'}, 'field': {'id': 'https://openalex.org/fields/13', 'display_name': 'Biochemistry, Genetics and Molecular Biology'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}, {'id': 'https://openalex.org/T12526', 'display_name': 'Antimicrobial agents and applications', 'score': 0.9974, 'subfield': {'id': 'https://openalex.org/subfields/1605', 'display_name': 'Organic Chemistry'}, 'field': {'id': 'https://openalex.org/fields/16', 'display_name': 'Chemistry'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, {'id': 'https://openalex.org/T10147', 'display_name': 'Antibiotic Resistance in Bacteria', 'score': 0.997, 'subfield': {'id': 'https://openalex.org/subfields/1313', 'display_name': 'Molecular Medicine'}, 'field': {'id': 'https://openalex.org/fields/13', 'display_name': 'Biochemistry, Genetics and Molecular Biology'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}], 'keywords': [{'id': 'https://openalex.org/keywords/disinfectant', 'display_name': 'Disinfectant', 'score': 0.45097184}], 'concepts': [{'id': 'https://openalex.org/C58123911', 'wikidata': 'https://www.wikidata.org/wiki/Q467410', 'display_name': 'Biofilm', 'level': 3, 'score': 0.91059613}, {'id': 'https://openalex.org/C505241676', 'wikidata': 'https://www.wikidata.org/wiki/Q688', 'display_name': 'Chlorine', 'level': 2, 'score': 0.87656665}, {'id': 'https://openalex.org/C89423630', 'wikidata': 'https://www.wikidata.org/wiki/Q7193', 'display_name': 'Microbiology', 'level': 1, 'score': 0.635509}, {'id': 'https://openalex.org/C2776460866', 'wikidata': 'https://www.wikidata.org/wiki/Q170065', 'display_name': 'Pathogen', 'level': 2, 'score': 0.5327836}, {'id': 'https://openalex.org/C2781221799', 'wikidata': 'https://www.wikidata.org/wiki/Q73984', 'display_name': 'Disinfectant', 'level': 2, 'score': 0.45097184}, {'id': 'https://openalex.org/C547475151', 'wikidata': 'https://www.wikidata.org/wiki/Q25419', 'display_name': 'Escherichia coli', 'level': 3, 'score': 0.4456761}, {'id': 'https://openalex.org/C185592680', 'wikidata': 'https://www.wikidata.org/wiki/Q2329', 'display_name': 'Chemistry', 'level': 0, 'score': 0.44322008}, {'id': 'https://openalex.org/C523546767', 'wikidata': 'https://www.wikidata.org/wiki/Q10876', 'display_name': 'Bacteria', 'level': 2, 'score': 0.42687005}, {'id': 'https://openalex.org/C190960625', 'wikidata': 'https://www.wikidata.org/wiki/Q1058719', 'display_name': 'Water treatment', 'level': 2, 'score': 0.42236945}, {'id': 'https://openalex.org/C31903555', 'wikidata': 'https://www.wikidata.org/wiki/Q1637030', 'display_name': 'Food science', 'level': 1, 'score': 0.41180116}, {'id': 'https://openalex.org/C86803240', 'wikidata': 'https://www.wikidata.org/wiki/Q420', 'display_name': 'Biology', 'level': 0, 'score': 0.34542954}, {'id': 'https://openalex.org/C87717796', 'wikidata': 'https://www.wikidata.org/wiki/Q146326', 'display_name': 'Environmental engineering', 'level': 1, 'score': 0.13779375}, {'id': 'https://openalex.org/C39432304', 'wikidata': 'https://www.wikidata.org/wiki/Q188847', 'display_name': 'Environmental science', 'level': 0, 'score': 0.06458467}, {'id': 'https://openalex.org/C55493867', 'wikidata': 'https://www.wikidata.org/wiki/Q7094', 'display_name': 'Biochemistry', 'level': 1, 'score': 0.059579164}, {'id': 'https://openalex.org/C54355233', 'wikidata': 'https://www.wikidata.org/wiki/Q7162', 'display_name': 'Genetics', 'level': 1, 'score': 0.0}, {'id': 'https://openalex.org/C178790620', 'wikidata': 'https://www.wikidata.org/wiki/Q11351', 'display_name': 'Organic chemistry', 'level': 1, 'score': 0.0}, {'id': 'https://openalex.org/C104317684', 'wikidata': 'https://www.wikidata.org/wiki/Q7187', 'display_name': 'Gene', 'level': 2, 'score': 0.0}], 'mesh': [{'descriptor_ui': 'D018441', 'descriptor_name': 'Biofilms', 'qualifier_ui': 'Q000187', 'qualifier_name': 'drug effects', 'is_major_topic': True}, {'descriptor_ui': 'D002713', 'descriptor_name': 'Chlorine', 'qualifier_ui': 'Q000494', 'qualifier_name': 'pharmacology', 'is_major_topic': True}, {'descriptor_ui': 'D004202', 'descriptor_name': 'Disinfectants', 'qualifier_ui': 'Q000494', 'qualifier_name': 'pharmacology', 'is_major_topic': True}, {'descriptor_ui': 'D004926', 'descriptor_name': 'Escherichia coli', 'qualifier_ui': 'Q000187', 'qualifier_name': 'drug effects', 'is_major_topic': True}, {'descriptor_ui': 'D004926', 'descriptor_name': 'Escherichia coli', 'qualifier_ui': 'Q000502', 'qualifier_name': 'physiology', 'is_major_topic': True}, {'descriptor_ui': 'D014871', 'descriptor_name': 'Water Microbiology', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': True}, {'descriptor_ui': 'D014881', 'descriptor_name': 'Water Supply', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': True}, {'descriptor_ui': 'D000822', 'descriptor_name': 'Animal Husbandry', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D000818', 'descriptor_name': 'Animals', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D018441', 'descriptor_name': 'Biofilms', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D002645', 'descriptor_name': 'Chickens', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D002713', 'descriptor_name': 'Chlorine', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D004202', 'descriptor_name': 'Disinfectants', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D004926', 'descriptor_name': 'Escherichia coli', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D006358', 'descriptor_name': 'Hot Temperature', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D006799', 'descriptor_name': 'Housing, Animal', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D014872', 'descriptor_name': 'Water Movements', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}], 'locations_count': 2, 'locations': [{'is_oa': True, 'landing_page_url': 'https://doi.org/10.3382/ps/pex088', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S133896805', 'display_name': 'Poultry Science', 'issn_l': '0032-5791', 'issn': ['0032-5791', '1525-3171'], 'is_oa': True, 'is_in_doaj': True, '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': 'cc-by-nc-nd', 'license_id': 'https://openalex.org/licenses/cc-by-nc-nd', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, {'is_oa': False, 'landing_page_url': 'https://pubmed.ncbi.nlm.nih.gov/28419339', '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': {'is_oa': True, 'landing_page_url': 'https://doi.org/10.3382/ps/pex088', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S133896805', 'display_name': 'Poultry Science', 'issn_l': '0032-5791', 'issn': ['0032-5791', '1525-3171'], 'is_oa': True, 'is_in_doaj': True, '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': 'cc-by-nc-nd', 'license_id': 'https://openalex.org/licenses/cc-by-nc-nd', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, 'sustainable_development_goals': [{'score': 0.84, 'display_name': 'Clean water and sanitation', 'id': 'https://metadata.un.org/sdg/6'}], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 55, 'referenced_works': ['https://openalex.org/W127471702', 'https://openalex.org/W1486363058', 'https://openalex.org/W1554968268', 'https://openalex.org/W1871883442', 'https://openalex.org/W1968487526', 'https://openalex.org/W1968876329', 'https://openalex.org/W1969285178', 'https://openalex.org/W1976891689', 'https://openalex.org/W1979722229', 'https://openalex.org/W1980015020', 'https://openalex.org/W1982771637', 'https://openalex.org/W2002515091', 'https://openalex.org/W2008463285', 'https://openalex.org/W2008503425', 'https://openalex.org/W2009160229', 'https://openalex.org/W2031668326', 'https://openalex.org/W2032499375', 'https://openalex.org/W2032967533', 'https://openalex.org/W2042228370', 'https://openalex.org/W2059685380', 'https://openalex.org/W2068718013', 'https://openalex.org/W2087280561', 'https://openalex.org/W2092024860', 'https://openalex.org/W2104843790', 'https://openalex.org/W2106503480', 'https://openalex.org/W2106898305', 'https://openalex.org/W2107871141', 'https://openalex.org/W2116229891', 'https://openalex.org/W2119121117', 'https://openalex.org/W2120647897', 'https://openalex.org/W2132872647', 'https://openalex.org/W2138139644', 'https://openalex.org/W2141647576', 'https://openalex.org/W2142888422', 'https://openalex.org/W2148551763', 'https://openalex.org/W2149886824', 'https://openalex.org/W2156215805', 'https://openalex.org/W2163476348', 'https://openalex.org/W2163970869', 'https://openalex.org/W2167119204', 'https://openalex.org/W2170260532', 'https://openalex.org/W2170305602', 'https://openalex.org/W2184989943', 'https://openalex.org/W2185733694', 'https://openalex.org/W2231144830', 'https://openalex.org/W2311118338', 'https://openalex.org/W2380076665', 'https://openalex.org/W2394795288', 'https://openalex.org/W2413080637', 'https://openalex.org/W2546729969', 'https://openalex.org/W2548993649', 'https://openalex.org/W289413441', 'https://openalex.org/W34744644', 'https://openalex.org/W4285719527', 'https://openalex.org/W77040350'], 'related_works': ['https://openalex.org/W4205860744', 'https://openalex.org/W2560621203', 'https://openalex.org/W2385724787', 'https://openalex.org/W2383708683', 'https://openalex.org/W2378750947', 'https://openalex.org/W2372671769', 'https://openalex.org/W2354372776', 'https://openalex.org/W2347817664', 'https://openalex.org/W2118840607', 'https://openalex.org/W1608396589'], 'abstract_inverted_index': {'Poultry': [0], 'waterlines': [1], 'are': [2], 'constructed': [3], 'using': [4], 'polyvinylchloride': [5], '(PVC)': [6], 'material': [7], 'on': [8, 44, 202], 'which': [9], 'bacterial': [10, 115], 'biofilm': [11, 51, 66, 94, 201], 'can': [12, 16, 197, 222], 'easily': [13], 'form.': [14], 'Biofilm': [15], 'harbor': [17], 'pathogens': [18], 'including': [19], 'avian': [20], 'pathogenic': [21], 'E.': [22, 35, 98, 118, 152, 194], 'coli': [23, 36, 99, 119, 153, 195], '(APEC)': [24], 'strains.': [25], 'An': [26], 'in': [27, 70, 84, 103, 142, 149, 179, 187, 224], 'vitro': [28], 'evaluation': [29], 'was': [30, 61, 68, 95, 138, 155, 168], 'performed': [31], 'to': [32], 'determine': [33], 'if': [34, 53, 209], 'sero': [37], 'group': [38], 'O2': [39, 100, 120, 154, 196], '(avian': [40], 'pathogenic)': [41], 'could': [42, 56], 'attach': [43], 'a': [45, 77, 203], 'PVC': [46, 71, 204], 'surface': [47, 205], 'that': [48, 193], 'had': [49], 'pre-formed': [50, 200], 'and': [52, 91, 117, 129, 145, 182, 215], 'this': [54, 93], 'phenomenon': [55], 'be': [57], 'affected': [58], 'when': [59], 'water': [60, 102, 210], 'treated': [62, 160], 'with': [63, 97], 'chlorine.': [64], 'Initially,': [65], 'growth': [67], 'induced': [69], 'test': [72, 110, 161], 'coupons': [73, 111, 137, 162, 172], '(15.16': [74], 'cm2)': [75], 'for': [76, 114], '7-day': [78], 'period': [79], 'mimicking': [80], 'the': [81, 85, 127, 216, 220, 225], 'waterline': [82], 'scenario': [83], 'first': [86], 'wk': [87], 'of': [88, 105, 219, 227], 'poultry': [89], 'brooding;': [90], 'then': [92], 'challenged': [96], 'seeded': [101], 'presence/absence': [104], 'chlorine': [106, 130, 159], 'treatment.': [107, 131], 'After': [108], 'rinsing,': [109], 'were': [112], 'sampled': [113], '(APC)': [116], 'enumeration': [121], 'at': [122], 'various': [123], 'occasions': [124], 'post': [125], 'seeding': [126], 'pathogen': [128, 221], 'Day': [132], '7': [133], 'APC': [134], 'recovered': [135, 157], 'from': [136, 158, 170], '4.35': [139], 'log10': [140, 147, 177, 185], 'cfu/cm2': [141, 148, 178, 186], 'trial': [143, 150, 180, 188], '1': [144, 181], '3.66': [146], '2.': [151], 'not': [156, 213], '(P': [163], '<': [164], '0.05),': [165], 'whereas': [166], 'it': [167], 'retrieved': [169], 'untreated': [171], '(untreated': [173], 'contained': [174], '>': [175, 183], '3': [176], '2': [184], '2).': [189], 'This': [190], 'study': [191], 'suggests': [192], 'incorporate': [198], 'into': [199], 'within': [206], '24': [207], 'h': [208], 'sanitation': [211], 'is': [212], 'present,': [214], 'attachment': [217], 'time': [218], 'prolong': [223], 'absence': [226], 'already': [228], 'formed': [229], 'biofilm.': [230]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2607338625', 'counts_by_year': [{'year': 2024, 'cited_by_count': 1}, {'year': 2023, 'cited_by_count': 1}, {'year': 2022, 'cited_by_count': 4}, {'year': 2020, 'cited_by_count': 1}, {'year': 2019, 'cited_by_count': 1}, {'year': 2018, 'cited_by_count': 1}], 'updated_date': '2025-01-19T03:26:15.702871', 'created_date': '2017-04-28'}