Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W1518673844', 'doi': 'https://doi.org/10.1023/a:1007720600588', 'title': None, 'display_name': None, 'publication_year': 1997, 'publication_date': '1997-01-01', 'ids': {'openalex': 'https://openalex.org/W1518673844', 'doi': 'https://doi.org/10.1023/a:1007720600588', 'mag': '1518673844'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1023/a:1007720600588', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S188633547', 'display_name': 'Fish Physiology and Biochemistry', 'issn_l': '0920-1742', 'issn': ['0920-1742', '1573-5168'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310319900', 'host_organization_name': 'Springer Science+Business Media', 'host_organization_lineage': ['https://openalex.org/P4310319965', 'https://openalex.org/P4310319900'], 'host_organization_lineage_names': ['Springer Nature', 'Springer Science+Business Media'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': ['crossref'], '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/A5051457120', 'display_name': 'Hiromi Ohta', 'orcid': 'https://orcid.org/0000-0001-6492-557X'}, 'institutions': [{'id': 'https://openalex.org/I4210117686', 'display_name': 'Fisheries Research Agency', 'ror': 'https://ror.org/02gmwvg31', 'country_code': 'JP', 'type': 'government', 'lineage': ['https://openalex.org/I4210117686']}], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'H. Ohta', 'raw_affiliation_strings': ['National Research Institute of Aquaculture, Nansei, Mie, Japan'], 'affiliations': [{'raw_affiliation_string': 'National Research Institute of Aquaculture, Nansei, Mie, Japan', 'institution_ids': ['https://openalex.org/I4210117686']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5053756289', 'display_name': 'Hirohiko Kagawa', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I4210117686', 'display_name': 'Fisheries Research Agency', 'ror': 'https://ror.org/02gmwvg31', 'country_code': 'JP', 'type': 'government', 'lineage': ['https://openalex.org/I4210117686']}], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'H. Kagawa', 'raw_affiliation_strings': ['National Research Institute of Aquaculture, Nansei, Mie, Japan'], 'affiliations': [{'raw_affiliation_string': 'National Research Institute of Aquaculture, Nansei, Mie, Japan', 'institution_ids': ['https://openalex.org/I4210117686']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5101612666', 'display_name': 'Hideki Tanaka', 'orcid': 'https://orcid.org/0000-0002-9842-5730'}, 'institutions': [{'id': 'https://openalex.org/I4210117686', 'display_name': 'Fisheries Research Agency', 'ror': 'https://ror.org/02gmwvg31', 'country_code': 'JP', 'type': 'government', 'lineage': ['https://openalex.org/I4210117686']}], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'H. Tanaka', 'raw_affiliation_strings': ['National Research Institute of Aquaculture, Nansei, Mie, Japan'], 'affiliations': [{'raw_affiliation_string': 'National Research Institute of Aquaculture, Nansei, Mie, Japan', 'institution_ids': ['https://openalex.org/I4210117686']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5010579913', 'display_name': 'Koichi Okuzawa', 'orcid': 'https://orcid.org/0000-0002-0172-1008'}, 'institutions': [{'id': 'https://openalex.org/I4210117686', 'display_name': 'Fisheries Research Agency', 'ror': 'https://ror.org/02gmwvg31', 'country_code': 'JP', 'type': 'government', 'lineage': ['https://openalex.org/I4210117686']}], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'K. Okuzawa', 'raw_affiliation_strings': ['National Research Institute of Aquaculture, Nansei, Mie, Japan'], 'affiliations': [{'raw_affiliation_string': 'National Research Institute of Aquaculture, Nansei, Mie, Japan', 'institution_ids': ['https://openalex.org/I4210117686']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5048224556', 'display_name': 'Norio Iinuma', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I178574317', 'display_name': 'Mie University', 'ror': 'https://ror.org/01529vy56', 'country_code': 'JP', 'type': 'education', 'lineage': ['https://openalex.org/I178574317']}], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'N. Iinuma', 'raw_affiliation_strings': ['Faculty of Bioresources Mie University Mie Japan'], 'affiliations': [{'raw_affiliation_string': 'Faculty of Bioresources Mie University Mie Japan', 'institution_ids': ['https://openalex.org/I178574317']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5008295976', 'display_name': 'Kei Hirose', 'orcid': 'https://orcid.org/0000-0003-4366-7721'}, 'institutions': [{'id': 'https://openalex.org/I4210117686', 'display_name': 'Fisheries Research Agency', 'ror': 'https://ror.org/02gmwvg31', 'country_code': 'JP', 'type': 'government', 'lineage': ['https://openalex.org/I4210117686']}], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'K. Hirose', 'raw_affiliation_strings': ['National Research Institute of Fisheries Science, Yokohama, Kanagawa, Japan'], 'affiliations': [{'raw_affiliation_string': 'National Research Institute of Fisheries Science, Yokohama, Kanagawa, Japan', 'institution_ids': ['https://openalex.org/I4210117686']}]}], 'institution_assertions': [], 'countries_distinct_count': 1, 'institutions_distinct_count': 2, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': {'value': 2690, 'currency': 'EUR', 'value_usd': 3390, 'provenance': 'doaj'}, 'apc_paid': None, 'fwci': 5.03, 'has_fulltext': True, 'fulltext_origin': 'ngrams', 'cited_by_count': 235, 'citation_normalized_percentile': None, 'cited_by_percentile_year': {'min': 98, 'max': 99}, 'biblio': {'volume': '17', 'issue': '1/6', 'first_page': '163', 'last_page': '169'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': None, 'topics': [], 'keywords': [{'id': 'https://openalex.org/keywords/germinal-vesicle', 'display_name': 'Germinal vesicle', 'score': 0.67234385}, {'id': 'https://openalex.org/keywords/milt', 'display_name': 'Milt', 'score': 0.6172224}, {'id': 'https://openalex.org/keywords/induced-ovulation', 'display_name': 'Induced ovulation', 'score': 0.5000169}, {'id': 'https://openalex.org/keywords/gonadotropin', 'display_name': 'Gonadotropin', 'score': 0.48674583}, {'id': 'https://openalex.org/keywords/human-chorionic-gonadotropin', 'display_name': 'Human chorionic gonadotropin', 'score': 0.43286228}], 'concepts': [{'id': 'https://openalex.org/C2777702977', 'wikidata': 'https://www.wikidata.org/wiki/Q187082', 'display_name': 'Ovulation', 'level': 3, 'score': 0.8334385}, {'id': 'https://openalex.org/C86803240', 'wikidata': 'https://www.wikidata.org/wiki/Q420', 'display_name': 'Biology', 'level': 0, 'score': 0.7161597}, {'id': 'https://openalex.org/C2994119143', 'wikidata': 'https://www.wikidata.org/wiki/Q3246226', 'display_name': 'Germinal vesicle', 'level': 4, 'score': 0.67234385}, {'id': 'https://openalex.org/C88972607', 'wikidata': 'https://www.wikidata.org/wiki/Q2666904', 'display_name': 'Human fertilization', 'level': 2, 'score': 0.6303725}, {'id': 'https://openalex.org/C126125632', 'wikidata': 'https://www.wikidata.org/wiki/Q1271982', 'display_name': 'Milt', 'level': 3, 'score': 0.6172224}, {'id': 'https://openalex.org/C134018914', 'wikidata': 'https://www.wikidata.org/wiki/Q162606', 'display_name': 'Endocrinology', 'level': 1, 'score': 0.593306}, {'id': 'https://openalex.org/C126322002', 'wikidata': 'https://www.wikidata.org/wiki/Q11180', 'display_name': 'Internal medicine', 'level': 1, 'score': 0.59019876}, {'id': 'https://openalex.org/C2779918556', 'wikidata': 'https://www.wikidata.org/wiki/Q18208041', 'display_name': 'Induced ovulation', 'level': 4, 'score': 0.5000169}, {'id': 'https://openalex.org/C2778782382', 'wikidata': 'https://www.wikidata.org/wiki/Q409770', 'display_name': 'Gonadotropin', 'level': 3, 'score': 0.48674583}, {'id': 'https://openalex.org/C2781087480', 'wikidata': 'https://www.wikidata.org/wiki/Q17145', 'display_name': 'Sperm', 'level': 2, 'score': 0.48377225}, {'id': 'https://openalex.org/C16685009', 'wikidata': 'https://www.wikidata.org/wiki/Q335057', 'display_name': 'Andrology', 'level': 1, 'score': 0.46648124}, {'id': 'https://openalex.org/C123765429', 'wikidata': 'https://www.wikidata.org/wiki/Q36961', 'display_name': 'Spermatogenesis', 'level': 2, 'score': 0.45257327}, {'id': 'https://openalex.org/C2775948956', 'wikidata': 'https://www.wikidata.org/wiki/Q407172', 'display_name': 'Human chorionic gonadotropin', 'level': 3, 'score': 0.43286228}, {'id': 'https://openalex.org/C2776690073', 'wikidata': 'https://www.wikidata.org/wiki/Q3246226', 'display_name': 'Oocyte', 'level': 3, 'score': 0.30459428}, {'id': 'https://openalex.org/C196843134', 'wikidata': 'https://www.wikidata.org/wiki/Q33196', 'display_name': 'Embryo', 'level': 2, 'score': 0.30244136}, {'id': 'https://openalex.org/C105702510', 'wikidata': 'https://www.wikidata.org/wiki/Q514', 'display_name': 'Anatomy', 'level': 1, 'score': 0.28824204}, {'id': 'https://openalex.org/C71315377', 'wikidata': 'https://www.wikidata.org/wiki/Q11364', 'display_name': 'Hormone', 'level': 2, 'score': 0.18450308}, {'id': 'https://openalex.org/C505870484', 'wikidata': 'https://www.wikidata.org/wiki/Q180538', 'display_name': 'Fishery', 'level': 1, 'score': 0.07571423}, {'id': 'https://openalex.org/C59822182', 'wikidata': 'https://www.wikidata.org/wiki/Q441', 'display_name': 'Botany', 'level': 1, 'score': 0.06649497}, {'id': 'https://openalex.org/C71924100', 'wikidata': 'https://www.wikidata.org/wiki/Q11190', 'display_name': 'Medicine', 'level': 0, 'score': 0.06571457}], 'mesh': [], 'locations_count': 1, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1023/a:1007720600588', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S188633547', 'display_name': 'Fish Physiology and Biochemistry', 'issn_l': '0920-1742', 'issn': ['0920-1742', '1573-5168'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310319900', 'host_organization_name': 'Springer Science+Business Media', 'host_organization_lineage': ['https://openalex.org/P4310319965', 'https://openalex.org/P4310319900'], 'host_organization_lineage_names': ['Springer Nature', 'Springer Science+Business Media'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}], 'best_oa_location': None, 'sustainable_development_goals': [{'score': 0.87, 'display_name': 'Life below water', 'id': 'https://metadata.un.org/sdg/14'}], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 26, 'referenced_works': ['https://openalex.org/W1553131230', 'https://openalex.org/W1558051976', 'https://openalex.org/W1702947036', 'https://openalex.org/W1752272865', 'https://openalex.org/W1786438878', 'https://openalex.org/W1954085456', 'https://openalex.org/W1976965528', 'https://openalex.org/W1980787671', 'https://openalex.org/W1986286475', 'https://openalex.org/W2036612584', 'https://openalex.org/W2038020118', 'https://openalex.org/W2073583094', 'https://openalex.org/W207650762', 'https://openalex.org/W2092074027', 'https://openalex.org/W2160265320', 'https://openalex.org/W2267538388', 'https://openalex.org/W2320781452', 'https://openalex.org/W2329319827', 'https://openalex.org/W2333909282', 'https://openalex.org/W2527469984', 'https://openalex.org/W3036109349', 'https://openalex.org/W3174437382', 'https://openalex.org/W4285719527', 'https://openalex.org/W612903659', 'https://openalex.org/W658831718', 'https://openalex.org/W991712861'], 'related_works': ['https://openalex.org/W2416891243', 'https://openalex.org/W2343336146', 'https://openalex.org/W2337876547', 'https://openalex.org/W2229972503', 'https://openalex.org/W2086756948', 'https://openalex.org/W2043856157', 'https://openalex.org/W2015670268', 'https://openalex.org/W1981098294', 'https://openalex.org/W1599784896', 'https://openalex.org/W1518673844'], 'abstract_inverted_index': None, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W1518673844', 'counts_by_year': [{'year': 2024, 'cited_by_count': 9}, {'year': 2023, 'cited_by_count': 3}, {'year': 2022, 'cited_by_count': 7}, {'year': 2021, 'cited_by_count': 9}, {'year': 2020, 'cited_by_count': 9}, {'year': 2019, 'cited_by_count': 9}, {'year': 2018, 'cited_by_count': 10}, {'year': 2017, 'cited_by_count': 12}, {'year': 2016, 'cited_by_count': 6}, {'year': 2015, 'cited_by_count': 11}, {'year': 2014, 'cited_by_count': 13}, {'year': 2013, 'cited_by_count': 11}, {'year': 2012, 'cited_by_count': 14}], 'updated_date': '2024-09-14T11:56:02.732326', 'created_date': '2016-06-24'}