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地屈孕酮联合固肾保胎汤治疗高龄二胎先兆流产临床效果
孙菊林 张华
Clinical effect of dydrogesterone combined with Gushenbaotai decoction for treating one child elderly pregnant women  with the threatened abortion
SUN Julin, ZHANG Hua
中国计划生育学杂志 . 2019, (8): 1007 .