{"title":"美国的助产士","authors":"Ernest L. Boyer PhD","doi":"10.1016/0091-2182(90)90113-J","DOIUrl":null,"url":null,"abstract":"","PeriodicalId":16670,"journal":{"name":"Journal of nurse-midwifery","volume":"35 4","pages":"Pages 214-219"},"PeriodicalIF":0.0000,"publicationDate":"1990-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0091-2182(90)90113-J","citationCount":"2","resultStr":"{\"title\":\"Midwifery in America\",\"authors\":\"Ernest L. Boyer PhD\",\"doi\":\"10.1016/0091-2182(90)90113-J\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"\",\"PeriodicalId\":16670,\"journal\":{\"name\":\"Journal of nurse-midwifery\",\"volume\":\"35 4\",\"pages\":\"Pages 214-219\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1990-07-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0091-2182(90)90113-J\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of nurse-midwifery\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/009121829090113J\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of nurse-midwifery","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/009121829090113J","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}