TY - JOUR A1 - Zhu, H. A1 - Xie, X. T1 - Socioeconomic differentials in mortality among the oldest old in china. using data from the 1998, 2000, and 2002 waves of the Chinese longitudinal healthy longevity survey Y1 - 2007 JF - Research on Aging VL - 29 IS - 2 SP - 125 EP - -143 ER -