D G Altman

Practical problems in fitting a proportional hazards model to data with updated measurements of the covariates.

D G Altman, B L De Stavola, D. Altman, 1994, Statistics in medicine.

Analysis of serial measurements in medical research.

D G Altman, J N Matthews, M J Campbell, 1990, BMJ.

Authors should make their data available

D G Altman, C Cates, D. Altman, 2001, BMJ : British Medical Journal.

The hidden effect of time.

D G Altman, J P Royston, D. Altman, 1988, Statistics in medicine.

Authors have rights too.

D G Altman, I Chalmers, 1993, BMJ.