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{"title":"Pelvic inflammatory disease among women using copper IUDs, Progestasert, oral contraceptive pills or vaginal contraceptive pills: a 4-year prospective investigation.","authors":"B Larsson, S Rodau, E Patek","doi":"","DOIUrl":null,"url":null,"abstract":"","PeriodicalId":84493,"journal":{"name":"Contraceptive delivery systems","volume":"2 3","pages":"237-42"},"PeriodicalIF":0.0000,"publicationDate":"1981-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Contraceptive delivery systems","FirstCategoryId":"1085","ListUrlMain":"","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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