{"id":"https://openalex.org/W1517112196","doi":"https://doi.org/10.1016/0002-9378(71)90804-0","title":"Radioimmunoassay for estrogens in human pregnancy urine, plasma, and amniotic fluid","display_name":"Radioimmunoassay for estrogens in human pregnancy urine, plasma, and amniotic fluid","publication_year":1971,"publication_date":"1971-03-01","ids":{"openalex":"https://openalex.org/W1517112196","doi":"https://doi.org/10.1016/0002-9378(71)90804-0","mag":"1517112196","pmid":"https://pubmed.ncbi.nlm.nih.gov/5573151"},"language":"en","primary_location":{"id":"doi:10.1016/0002-9378(71)90804-0","doi":"https://doi.org/10.1016/0002-9378(71)90804-0","is_oa":false,"landing_page_url":"https://doi.org/10.1016/0002-9378(71)90804-0","pdf_url":null,"source":{"id":"https://openalex.org/S122347013","display_name":"American Journal of Obstetrics and Gynecology","issn_l":"0002-9378","issn":["0002-9378","1085-8709","1097-6868"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-a","doyens","jufo-3","ki-jl-3","medline","norway-2","poland-140","russia-white-list-1","vabb-shw"],"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":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"American Journal of Obstetrics and Gynecology","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","pubmed"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5041662098","display_name":"Erlio Gurpide","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I130238516","display_name":"University of Minnesota","ror":"https://ror.org/017zqws13","country_code":"US","type":"education","lineage":["https://openalex.org/I130238516"]},{"id":"https://openalex.org/I1321572752","display_name":"St. Luke's-Roosevelt Hospital Center","ror":"https://ror.org/011t2cn48","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1321572752"]},{"id":"https://openalex.org/I78577930","display_name":"Columbia University","ror":"https://ror.org/00hj8s172","country_code":"US","type":"education","lineage":["https://openalex.org/I78577930"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Erlio Gurpide","raw_affiliation_strings":["Department of Biochemistry, University of Minnesota, Minneapolis, Minnesota, USA","Department of Obstetrics and Gynecology, St. Luke's Hospital Center, New York, New York, USA","Department of Obstetrics and Gynecology, University of Minnesota, Minneapolis, Minnesota, USA","Department of Pharmacology, College of Physicians and Surgeons, Columbia University, New York, New York, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Biochemistry, University of Minnesota, Minneapolis, Minnesota, USA","institution_ids":["https://openalex.org/I130238516"]},{"raw_affiliation_string":"Department of Obstetrics and Gynecology, St. Luke's Hospital Center, New York, New York, USA","institution_ids":["https://openalex.org/I1321572752"]},{"raw_affiliation_string":"Department of Obstetrics and Gynecology, University of Minnesota, Minneapolis, Minnesota, USA","institution_ids":["https://openalex.org/I130238516"]},{"raw_affiliation_string":"Department of Pharmacology, College of Physicians and Surgeons, Columbia University, New York, New York, USA","institution_ids":["https://openalex.org/I78577930"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5038489259","display_name":"Margaret E. Giebenhain","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I130238516","display_name":"University of Minnesota","ror":"https://ror.org/017zqws13","country_code":"US","type":"education","lineage":["https://openalex.org/I130238516"]},{"id":"https://openalex.org/I1321572752","display_name":"St. Luke's-Roosevelt Hospital Center","ror":"https://ror.org/011t2cn48","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1321572752"]},{"id":"https://openalex.org/I78577930","display_name":"Columbia University","ror":"https://ror.org/00hj8s172","country_code":"US","type":"education","lineage":["https://openalex.org/I78577930"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Margaret E. Giebenhain","raw_affiliation_strings":["Department of Biochemistry, University of Minnesota, Minneapolis, Minnesota, USA","Department of Obstetrics and Gynecology, St. Luke's Hospital Center, New York, New York, USA","Department of Obstetrics and Gynecology, University of Minnesota, Minneapolis, Minnesota, USA","Department of Pharmacology, College of Physicians and Surgeons, Columbia University, New York, New York, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Biochemistry, University of Minnesota, Minneapolis, Minnesota, USA","institution_ids":["https://openalex.org/I130238516"]},{"raw_affiliation_string":"Department of Obstetrics and Gynecology, St. Luke's Hospital Center, New York, New York, USA","institution_ids":["https://openalex.org/I1321572752"]},{"raw_affiliation_string":"Department of Obstetrics and Gynecology, University of Minnesota, Minneapolis, Minnesota, USA","institution_ids":["https://openalex.org/I130238516"]},{"raw_affiliation_string":"Department of Pharmacology, College of Physicians and Surgeons, Columbia University, New York, New York, USA","institution_ids":["https://openalex.org/I78577930"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5110335693","display_name":"Linda Tseng","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I130238516","display_name":"University of Minnesota","ror":"https://ror.org/017zqws13","country_code":"US","type":"education","lineage":["https://openalex.org/I130238516"]},{"id":"https://openalex.org/I1321572752","display_name":"St. Luke's-Roosevelt Hospital Center","ror":"https://ror.org/011t2cn48","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1321572752"]},{"id":"https://openalex.org/I78577930","display_name":"Columbia University","ror":"https://ror.org/00hj8s172","country_code":"US","type":"education","lineage":["https://openalex.org/I78577930"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Linda Tseng","raw_affiliation_strings":["Department of Biochemistry, University of Minnesota, Minneapolis, Minnesota, USA","Department of Obstetrics and Gynecology, St. Luke's Hospital Center, New York, New York, USA","Department of Obstetrics and Gynecology, University of Minnesota, Minneapolis, Minnesota, USA","Department of Pharmacology, College of Physicians and Surgeons, Columbia University, New York, New York, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Biochemistry, University of Minnesota, Minneapolis, Minnesota, USA","institution_ids":["https://openalex.org/I130238516"]},{"raw_affiliation_string":"Department of Obstetrics and Gynecology, St. Luke's Hospital Center, New York, New York, USA","institution_ids":["https://openalex.org/I1321572752"]},{"raw_affiliation_string":"Department of Obstetrics and Gynecology, University of Minnesota, Minneapolis, Minnesota, USA","institution_ids":["https://openalex.org/I130238516"]},{"raw_affiliation_string":"Department of Pharmacology, College of Physicians and Surgeons, Columbia University, New York, New York, USA","institution_ids":["https://openalex.org/I78577930"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5090831864","display_name":"William G. Kelly","orcid":"https://orcid.org/0000-0003-2562-3522","observed_orcids":["https://orcid.org/0000-0003-2562-3522"]},"institutions":[{"id":"https://openalex.org/I130238516","display_name":"University of Minnesota","ror":"https://ror.org/017zqws13","country_code":"US","type":"education","lineage":["https://openalex.org/I130238516"]},{"id":"https://openalex.org/I1321572752","display_name":"St. Luke's-Roosevelt Hospital Center","ror":"https://ror.org/011t2cn48","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1321572752"]},{"id":"https://openalex.org/I78577930","display_name":"Columbia University","ror":"https://ror.org/00hj8s172","country_code":"US","type":"education","lineage":["https://openalex.org/I78577930"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"William G. Kelly","raw_affiliation_strings":["Department of Biochemistry, University of Minnesota, Minneapolis, Minnesota, USA","Department of Obstetrics and Gynecology, St. Luke's Hospital Center, New York, New York, USA","Department of Obstetrics and Gynecology, University of Minnesota, Minneapolis, Minnesota, USA","Department of Pharmacology, College of Physicians and Surgeons, Columbia University, New York, New York, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Biochemistry, University of Minnesota, Minneapolis, Minnesota, USA","institution_ids":["https://openalex.org/I130238516"]},{"raw_affiliation_string":"Department of Obstetrics and Gynecology, St. Luke's Hospital Center, New York, New York, USA","institution_ids":["https://openalex.org/I1321572752"]},{"raw_affiliation_string":"Department of Obstetrics and Gynecology, University of Minnesota, Minneapolis, Minnesota, USA","institution_ids":["https://openalex.org/I130238516"]},{"raw_affiliation_string":"Department of Pharmacology, College of Physicians and Surgeons, Columbia University, New York, New York, USA","institution_ids":["https://openalex.org/I78577930"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":5410,"currency":"USD","value_usd":5410},"apc_paid":null,"fwci":6.9693,"has_fulltext":false,"cited_by_count":77,"citation_normalized_percentile":{"value":0.97555012,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":92,"max":95},"biblio":{"volume":"109","issue":"6","first_page":"897","last_page":"906"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10756","display_name":"Estrogen and related hormone effects","score":0.9154999852180481,"subfield":{"id":"https://openalex.org/subfields/1310","display_name":"Endocrinology"},"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/T10756","display_name":"Estrogen and related hormone effects","score":0.9154999852180481,"subfield":{"id":"https://openalex.org/subfields/1310","display_name":"Endocrinology"},"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/T12715","display_name":"Pregnancy-related medical research","score":0.057999998331069946,"subfield":{"id":"https://openalex.org/subfields/2729","display_name":"Obstetrics and Gynecology"},"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/T13736","display_name":"Steroid Chemistry and Biochemistry","score":0.0026000000070780516,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/estrogen-measurement","display_name":"estrogen measurement","score":0.7120000123977661},{"id":"https://openalex.org/keywords/pregnancy","display_name":"pregnancy","score":0.7289999723434448},{"id":"https://openalex.org/keywords/urine","display_name":"urine","score":0.48399999737739563},{"id":"https://openalex.org/keywords/plasma","display_name":"plasma","score":0.9789999723434448},{"id":"https://openalex.org/keywords/amniotic-fluid","display_name":"amniotic fluid","score":1.0},{"id":"https://openalex.org/keywords/sheep-antiserum","display_name":"sheep antiserum","score":0.8149999976158142},{"id":"https://openalex.org/keywords/estriol","display_name":"estriol","score":0.8610000014305115},{"id":"https://openalex.org/keywords/estrone","display_name":"estrone","score":0.9369999766349792},{"id":"https://openalex.org/keywords/ammonium-sulfate-precipitation","display_name":"ammonium sulfate precipitation","score":0.7670000195503235}],"concepts":[{"id":"https://openalex.org/C2777335581","wikidata":"https://www.wikidata.org/wiki/Q409721","display_name":"Estriol","level":3,"score":0.9578754901885986},{"id":"https://openalex.org/C2778194526","wikidata":"https://www.wikidata.org/wiki/Q901674","display_name":"Amniotic fluid","level":4,"score":0.7755335569381714},{"id":"https://openalex.org/C2778656385","wikidata":"https://www.wikidata.org/wiki/Q414986","display_name":"Estrone","level":3,"score":0.7351309061050415},{"id":"https://openalex.org/C176685330","wikidata":"https://www.wikidata.org/wiki/Q857638","display_name":"Radioimmunoassay","level":2,"score":0.7238245010375977},{"id":"https://openalex.org/C2780026642","wikidata":"https://www.wikidata.org/wiki/Q40924","display_name":"Urine","level":2,"score":0.7157109975814819},{"id":"https://openalex.org/C134018914","wikidata":"https://www.wikidata.org/wiki/Q162606","display_name":"Endocrinology","level":1,"score":0.5909477472305298},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.5596301555633545},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.5426266193389893},{"id":"https://openalex.org/C43617362","wikidata":"https://www.wikidata.org/wiki/Q170050","display_name":"Chromatography","level":1,"score":0.5303353071212769},{"id":"https://openalex.org/C2779234561","wikidata":"https://www.wikidata.org/wiki/Q11995","display_name":"Pregnancy","level":2,"score":0.45528730750083923},{"id":"https://openalex.org/C2779186261","wikidata":"https://www.wikidata.org/wiki/Q137786","display_name":"Glucuronide","level":3,"score":0.4323950409889221},{"id":"https://openalex.org/C2776428949","wikidata":"https://www.wikidata.org/wiki/Q18814659","display_name":"Ammonium sulfate precipitation","level":4,"score":0.4288289546966553},{"id":"https://openalex.org/C172680121","wikidata":"https://www.wikidata.org/wiki/Q26513","display_name":"Fetus","level":3,"score":0.3930111825466156},{"id":"https://openalex.org/C2777164284","wikidata":"https://www.wikidata.org/wiki/Q277954","display_name":"Estrogen","level":2,"score":0.3130207657814026},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.2749897539615631},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.1196635365486145},{"id":"https://openalex.org/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","level":1,"score":0.10563826560974121},{"id":"https://openalex.org/C181199279","wikidata":"https://www.wikidata.org/wiki/Q8047","display_name":"Enzyme","level":2,"score":0.0},{"id":"https://openalex.org/C54355233","wikidata":"https://www.wikidata.org/wiki/Q7162","display_name":"Genetics","level":1,"score":0.0},{"id":"https://openalex.org/C193363816","wikidata":"https://www.wikidata.org/wiki/Q1617865","display_name":"Size-exclusion chromatography","level":3,"score":0.0}],"mesh":[{"descriptor_ui":"D000644","descriptor_name":"Quaternary Ammonium Compounds","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D000653","descriptor_name":"Amniotic Fluid","qualifier_ui":"Q000032","qualifier_name":"analysis","is_major_topic":true},{"descriptor_ui":"D002849","descriptor_name":"Chromatography, Gas","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D004958","descriptor_name":"Estradiol","qualifier_ui":"Q000032","qualifier_name":"analysis","is_major_topic":false},{"descriptor_ui":"D004964","descriptor_name":"Estriol","qualifier_ui":"Q000032","qualifier_name":"analysis","is_major_topic":false},{"descriptor_ui":"D004967","descriptor_name":"Estrogens","qualifier_ui":"Q000032","qualifier_name":"analysis","is_major_topic":true},{"descriptor_ui":"D004967","descriptor_name":"Estrogens","qualifier_ui":"Q000097","qualifier_name":"blood","is_major_topic":false},{"descriptor_ui":"D004967","descriptor_name":"Estrogens","qualifier_ui":"Q000652","qualifier_name":"urine","is_major_topic":false},{"descriptor_ui":"D004970","descriptor_name":"Estrone","qualifier_ui":"Q000032","qualifier_name":"analysis","is_major_topic":false},{"descriptor_ui":"D005260","descriptor_name":"Female","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D005965","descriptor_name":"Glucuronates","qualifier_ui":"Q000032","qualifier_name":"analysis","is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D007106","descriptor_name":"Immune Sera","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008722","descriptor_name":"Methods","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D011247","descriptor_name":"Pregnancy","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D011863","descriptor_name":"Radioimmunoassay","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D013431","descriptor_name":"Sulfates","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D014316","descriptor_name":"Tritium","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false}],"locations_count":2,"locations":[{"id":"doi:10.1016/0002-9378(71)90804-0","doi":"https://doi.org/10.1016/0002-9378(71)90804-0","is_oa":false,"landing_page_url":"https://doi.org/10.1016/0002-9378(71)90804-0","pdf_url":null,"source":{"id":"https://openalex.org/S122347013","display_name":"American Journal of Obstetrics and Gynecology","issn_l":"0002-9378","issn":["0002-9378","1085-8709","1097-6868"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-a","doyens","jufo-3","ki-jl-3","medline","norway-2","poland-140","russia-white-list-1","vabb-shw"],"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":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"American Journal of Obstetrics and Gynecology","raw_type":"journal-article"},{"id":"pmid:5573151","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/5573151","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"American journal of obstetrics and gynecology","raw_type":"Journal Article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Good health and well-being","score":0.5683000087738037,"id":"https://metadata.un.org/sdg/3"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":13,"referenced_works":["https://openalex.org/W1479718173","https://openalex.org/W1519844196","https://openalex.org/W1588557783","https://openalex.org/W1970098925","https://openalex.org/W1991714673","https://openalex.org/W2004423102","https://openalex.org/W2012345238","https://openalex.org/W2014936614","https://openalex.org/W2018106112","https://openalex.org/W2053402115","https://openalex.org/W2118502839","https://openalex.org/W2228016854","https://openalex.org/W2411713522"],"related_works":["https://openalex.org/W2080345123","https://openalex.org/W2161069640","https://openalex.org/W1592233378","https://openalex.org/W1751666226","https://openalex.org/W2127575337","https://openalex.org/W2132103939","https://openalex.org/W2398337761","https://openalex.org/W2047517435","https://openalex.org/W2472742867","https://openalex.org/W2082773329"],"abstract_inverted_index":null,"counts_by_year":[{"year":2026,"cited_by_count":1}],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2016-06-24T00:00:00"}
