TY - JOUR A1 - Robins, J.M. A1 - Rotnitzky, A. A1 - Zhao, L.P. T1 - Analysis of semiparametric regression models for repeated outcomes in the presence of missing data Y1 - 1995 DO - 10.1080/01621459.1995.10476493 VL - 90 IS - 429 ER -