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本课题为WHO人类生殖研究、发展和研究培训特别规划署的研究项目,其目的是监测Norplant皮下埋植避孕法短期及中期安全性和效能及其潜在和罕见的副作用。此为多国家、多中心研究,上海医科大学妇产科医院为其中的一个中心,研究始自1989年1月至1995年8月结束。材料和方法一、材料?
This project is a WHO research project on the development, research, development and training of human beings for the purpose of monitoring the short-term and medium-term safety and efficacy of Norplant subcutaneously implanted contraception and its potential and rare side effects. This is a multi-country, multicenter study with the Shanghai Medical University Obstetrics and Gynecology Hospital as one of the centers. The study started from January 1989 to August 1995. Materials and methods First, the material?