宫内节育器使用者比非使用者更容易得PID，但发病率仍然很低，每年约为2%。

{"title":"宫内节育器使用者比非使用者更容易得PID，但发病率仍然很低，每年约为2%。","authors":"","doi":"10.2307/2948156","DOIUrl":null,"url":null,"abstract":"","PeriodicalId":76914,"journal":{"name":"International family planning digest","volume":"2 2 1","pages":"3-4"},"PeriodicalIF":0.0000,"publicationDate":"1976-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2307/2948156","citationCount":"0","resultStr":"{\"title\":\"IUD users are more apt to get PID than nonusers but incidence still low--about 2 percent per year.\",\"authors\":\"\",\"doi\":\"10.2307/2948156\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"\",\"PeriodicalId\":76914,\"journal\":{\"name\":\"International family planning digest\",\"volume\":\"2 2 1\",\"pages\":\"3-4\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1976-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.2307/2948156\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International family planning digest\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.2307/2948156\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International family planning digest","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2307/2948156","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}