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三种国产宫内节育器的临床比较湖南省计划生育研究所（４１０００５）倪丽云左诗慧６０年代以来，我国大量使用金属单环（以下简称金单），它是一种惰性宫内节育器（ＩＵＤ），在降低我国人口出生率方面起到了重要作用，但脱落率和妊娠率高。７０年代后期发展了活性ＩＵＤ...
Clinical Comparison of Three Domestic IUDs Hunan Institute of Family Planning (410005) Ni Liyun Zuo Shuihui Since the 1960s, China has extensively used metal single rings (hereinafter referred to as gold single sheets), which is an inert IUD IUD) has played an important role in reducing the birth rate in our country, but with high rates of extinction and pregnancy. The late 70’s developed an active IUD ...