TY - JOUR A1 - Cheng, E.R. A1 - Poehlmann, J. A1 - Mullahy, J. A1 - Witt, W.P. T1 - Cumulative social risk exposure, infant birthweight, and cognitive delay in infancy Y1 - 2014 DO - 10.1016/j.acap.2014.03.014 VL - 14 IS - 6 ER -