{"id":"https://openalex.org/W4255387828","doi":"https://doi.org/10.1007/bf02265991","title":"Methoden- und Gebrauchssicherheit der symptothermalen Methode der nat\u00fcrlichen Familienplanung: Prospektive Studie mit inzwischen 10.649 Zyklen","display_name":"Methoden- und Gebrauchssicherheit der symptothermalen Methode der nat\u00fcrlichen Familienplanung: Prospektive Studie mit inzwischen 10.649 Zyklen","publication_year":1993,"publication_date":"1993-12-01","ids":{"openalex":"https://openalex.org/W4255387828","doi":"https://doi.org/10.1007/bf02265991"},"language":"de","primary_location":{"id":"doi:10.1007/bf02265991","doi":"https://doi.org/10.1007/bf02265991","is_oa":false,"landing_page_url":"https://doi.org/10.1007/bf02265991","pdf_url":null,"source":{"id":"https://openalex.org/S568598","display_name":"Archives of Gynecology and Obstetrics","issn_l":"0003-9128","issn":["0003-9128","0170-9925","0932-0067","1432-0711"],"is_oa":false,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","dongbi-c","doyens","jufo-1","ki-jl-1","medline","norway-1","poland-70","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Archives of Gynecology and Obstetrics","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","doaj"],"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/A5011337611","display_name":"G. Freundl","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"G. Freundl","raw_affiliation_strings":["Frauenklinik des St\u00e4dt. Krankenhauses D\u00fcsseldorf-Benrath, Urdenbacher Allee 83, D-40593, D\u00fcsseldorf"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Frauenklinik des St\u00e4dt. Krankenhauses D\u00fcsseldorf-Benrath, Urdenbacher Allee 83, D-40593, D\u00fcsseldorf","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5066682447","display_name":"M. Bremme","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"M. Bremme","raw_affiliation_strings":["Frauenklinik des St\u00e4dt. Krankenhauses D\u00fcsseldorf-Benrath, Urdenbacher Allee 83, D-40593, D\u00fcsseldorf"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Frauenklinik des St\u00e4dt. Krankenhauses D\u00fcsseldorf-Benrath, Urdenbacher Allee 83, D-40593, D\u00fcsseldorf","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5062461795","display_name":"Petra Frank\u2010Herrmann","orcid":"https://orcid.org/0000-0002-1322-0366","observed_orcids":["https://orcid.org/0000-0002-1322-0366"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"P. Frank-Herrmann","raw_affiliation_strings":["Frauenklinik des St\u00e4dt. Krankenhauses D\u00fcsseldorf-Benrath, Urdenbacher Allee 83, D-40593, D\u00fcsseldorf"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Frauenklinik des St\u00e4dt. Krankenhauses D\u00fcsseldorf-Benrath, Urdenbacher Allee 83, D-40593, D\u00fcsseldorf","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5110830353","display_name":"Siegfried Baur","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"S. Baur","raw_affiliation_strings":["Malteser AG NFP, Steinfelder Gasse 9, D-50670, K\u00f6ln","I.-Universit\u00e4ts-Frauenklinik M\u00fcnchen, Maistr., D-80337, M\u00fcnchen"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Malteser AG NFP, Steinfelder Gasse 9, D-50670, K\u00f6ln","institution_ids":[]},{"raw_affiliation_string":"I.-Universit\u00e4ts-Frauenklinik M\u00fcnchen, Maistr., D-80337, M\u00fcnchen","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5047707203","display_name":"Ursula Sottong","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"U. Sottong","raw_affiliation_strings":["I.-Universit\u00e4ts-Frauenklinik M\u00fcnchen, Maistr., D-80337, M\u00fcnchen","Malteser AG NFP, Steinfelder Gasse 9, D-50670, K\u00f6ln"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"I.-Universit\u00e4ts-Frauenklinik M\u00fcnchen, Maistr., D-80337, M\u00fcnchen","institution_ids":[]},{"raw_affiliation_string":"Malteser AG NFP, Steinfelder Gasse 9, D-50670, K\u00f6ln","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":4590,"currency":"USD","value_usd":4590},"apc_paid":null,"fwci":0.6596,"has_fulltext":false,"cited_by_count":3,"citation_normalized_percentile":{"value":0.69196991,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":93},"biblio":{"volume":"254","issue":"1-4","first_page":"281","last_page":"285"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10600","display_name":"Reproductive Health and Contraception","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/2739","display_name":"Public Health, Environmental and Occupational Health"},"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/T10600","display_name":"Reproductive Health and Contraception","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/2739","display_name":"Public Health, Environmental and Occupational Health"},"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/T11156","display_name":"Reproductive Health and Technologies","score":0.0,"subfield":{"id":"https://openalex.org/subfields/2743","display_name":"Reproductive Medicine"},"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/T13332","display_name":"Historical Studies on Reproduction, Gender, Health, and Societal Changes","score":0.0,"subfield":{"id":"https://openalex.org/subfields/1202","display_name":"History"},"field":{"id":"https://openalex.org/fields/12","display_name":"Arts and Humanities"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/symptothermal-method","display_name":"symptothermal method","score":0.9440000057220459},{"id":"https://openalex.org/keywords/natural-family-planning","display_name":"natural family planning","score":0.996999979019165},{"id":"https://openalex.org/keywords/method-failure","display_name":"method failure","score":0.5630000233650208},{"id":"https://openalex.org/keywords/pearl-index","display_name":"Pearl index","score":0.9300000071525574},{"id":"https://openalex.org/keywords/contraceptive-effectiveness","display_name":"contraceptive effectiveness","score":0.6660000085830688},{"id":"https://openalex.org/keywords/menstrual-cycle-length","display_name":"menstrual cycle length","score":0.6919999718666077},{"id":"https://openalex.org/keywords/age-differences","display_name":"age differences","score":0.47999998927116394},{"id":"https://openalex.org/keywords/unwanted-pregnancy","display_name":"unwanted pregnancy","score":0.47600001096725464}],"concepts":[{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.6980637907981873},{"id":"https://openalex.org/C29456083","wikidata":"https://www.wikidata.org/wiki/Q1221899","display_name":"Gynecology","level":1,"score":0.6109633445739746}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1007/bf02265991","doi":"https://doi.org/10.1007/bf02265991","is_oa":false,"landing_page_url":"https://doi.org/10.1007/bf02265991","pdf_url":null,"source":{"id":"https://openalex.org/S568598","display_name":"Archives of Gynecology and Obstetrics","issn_l":"0003-9128","issn":["0003-9128","0170-9925","0932-0067","1432-0711"],"is_oa":false,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","dongbi-c","doyens","jufo-1","ki-jl-1","medline","norway-1","poland-70","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Archives of Gynecology and Obstetrics","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/3","display_name":"Good health and well-being","score":0.9537000060081482}],"study_designs":[{"id":"https://openalex.org/study-designs/observational-study","display_name":"Observational Study"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":3,"referenced_works":["https://openalex.org/W2034188959","https://openalex.org/W2053672334","https://openalex.org/W4238542650"],"related_works":["https://openalex.org/W2560830162","https://openalex.org/W2286469567","https://openalex.org/W2303479336","https://openalex.org/W4229873903","https://openalex.org/W2082545645","https://openalex.org/W4244678102","https://openalex.org/W2296508904","https://openalex.org/W4302782591","https://openalex.org/W1983007764","https://openalex.org/W2082182041"],"abstract_inverted_index":null,"counts_by_year":[{"year":2023,"cited_by_count":1}],"updated_date":"2026-10-12T09:40:04.860316","created_date":"2022-05-12T00:00:00"}