Stuart R. Lipsitz

Designs and analysis of two-stage studies.

L P Zhao, S Lipsitz, S. Lipsitz, 1992, Statistics in medicine.

Methods for estimating the parameters of a linear model for ordered categorical data.

S. Lipsitz, Stuart R. Lipsitz, 1992, Biometrics.

Non-ignorable missing covariates in generalized linear models.

M. H. Chen, S. Lipsitz, J. Ibrahim, 1999, Statistics in medicine.

Estimation with correlated censored survival data with missing covariates.

J G Ibrahim, S R Lipsitz, Stuart R. Lipsitz, 2000, Biostatistics.

Inference using conditional logistic regression with missing covariates.

S R Lipsitz, S. Lipsitz, M. Parzen, 1998, Biometrics.