国产左旋甲基炔诺酮皮下埋植避孕剂（ＣＬａ）是我国“七五”期间研制成功的新型长效避孕方法。我站自１９９２年１２月起引进应用，到１９９５年６月止共埋植了１６７例。现将其临床应用情况报告如下：１材料与方法１．１皮下埋植剂选用丹东鸭绿江制药厂生产的左旋炔诺酮... Domestic levonorgestrel implants contraceptive (CLa) is China’s “seven five” during the successful development of a new long-acting contraceptive methods. I station since December 1992 introduction of the application, as of June 1995 a total of 167 cases were implanted. Now the clinical application of the report as follows: 1 Materials and methods 1.1 Subcutaneous implants use Dandong Yalu River pharmaceutical production of levonorgestrel ...