Steven Lipshultz

Parameter Estimation in Longitudinal Studies with Outcome‐Dependent Follow‐Up

Joseph G Ibrahim, Stuart R Lipsitz, Garrett M Fitzmaurice, 2002, Biometrics.

Estimation in regression models for longitudinal binary data with outcome-dependent follow-up.

Joseph G Ibrahim, Stuart R Lipsitz, Garrett M Fitzmaurice, 2005, Biostatistics.

A weighted estimating equation for linear regression with missing covariate data

Joseph G Ibrahim, Stuart R Lipsitz, Michael Parzen, 2002, Statistics in medicine.