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A survey of menarche occurrence between mother and daughter in Inner Mongolia
CHEN Bala;HU Nashun;BAO Yurong;XU Ruihao;CHEN Yulan;ZHANG Bin;ZHOU Xianwei;WANG Shangming;BAO Guo;WANG Ning;SHI Cuige;ZHANG Shucheng;WANG Jiedong;Family Planning Service Station;Naiman;Inner Mongolia;Population and Family Planning Service Center;Tongliao;Inner Mongolia;Tongliao Vocational College;National Research Institute for Family Planning;Peking Union Medical College;
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