Gerrit-Anne van Es

Reproducibility of carotid vessel wall thickness measurements. The Rotterdam Study.

A. Hofman, M. Bots, D. Grobbee, 1994, Journal of clinical epidemiology.

Efficiency optimization of the selection period in therapeutic trials.

J. Habbema, D. Grobbee, T. Stijnen, 1997, Journal of clinical epidemiology.