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皮下埋植避孕妇女血清左炔诺酮含量影响因素分析
王树松;孙彦荣
Analysis on Influential Factors of Serum Levonorgestrel Levels in Users of Norplant Implants
WangShusong[1];SunYanrong[2]
. 2009, (1): 29 .