TY - JOUR A1 - Poston, D.L. A1 - Gu, B. A1 - Liu, P.P. A1 - McDaniel, S. T1 - Son preference and the sex ratio at birth in China: A provincial level analysis Y1 - 1997 JF - Social Biology VL - 44 IS - 1-2 SP - 55 EP - -76 ER -