We consider the analysis of clustered data using linear mixed effects models and generalized estimating equations, where covariates can be decomposed into between- and within-cluster components. Under ...

Although many authors have proposed different approaches to the analysis of length-biased survival data, a number of issues have not been fully addressed. The most important among these issues is ...

The plots used by Viale et al 2 are one way of exploring prognostic effects of continuous variables nonparametrically, but a more relevant question is that of an interaction between treatment and a ...