Michael Schemper

Logistic regression modeling and the number of events per variable: selection bias dominates.

Ewout W Steyerberg, Frank E Harrell, Michael Schemper, 2011, Journal of clinical epidemiology.

Comparing the importance of prognostic factors in Cox and logistic regression using SAS

Georg Heinze, Michael Schemper, M. Schemper, 2003, Comput. Methods Programs Biomed..

Gene selection in microarray survival studies under possibly non-proportional hazards

Georg Heinze, Michael Schemper, Daniela Dunkler, 2010, Bioinform..

Comparing Cox and parametric models in clinical studies

Michael Schemper, Alessandra Nardi, M. Schemper, 2003, Statistics in medicine.