TY - JOUR A1 - Babiarz, K.S. A1 - Ma, P. A1 - Song, S. A1 - Miller, G. T1 - Population sex imbalance in China before the one-child policy Y1 - 2019 DO - 10.4054/DemRes.2019.40.13 VL - 40 IS - 13 ER -