Nebel W A, Currie J L, Lassiter R E
Am J Obstet Gynecol. 1976 Nov 1;126(5):586-9. doi: 10.1016/0002-9378(76)90756-0.
There have been 203 copper-7 IUD insertions performed in 199 women. The data from 2,230 woman-months of use have been analyzed and compared with other published reports. The copper-7 IUD was an acceptable contraceptive method in regard to effectiveness, continuation, and lack of serious complications.
已为199名女性置入了203枚铜7宫内节育器。对2230个女性使用月的数据进行了分析,并与其他已发表的报告进行了比较。就有效性、续用率和无严重并发症而言,铜7宫内节育器是一种可接受的避孕方法。