{"title":"The formulation of oral contraceptives: does the amount of estrogen make any clinical difference?","authors":"L Speroff","doi":"","DOIUrl":null,"url":null,"abstract":"","PeriodicalId":22609,"journal":{"name":"The Johns Hopkins medical journal","volume":"150 5","pages":"170-6"},"PeriodicalIF":0.0000,"publicationDate":"1982-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"The Johns Hopkins medical journal","FirstCategoryId":"1085","ListUrlMain":"","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}