1. From the National Institute for Public Health and the Environment, Bilthoven, Netherlands (PMCMW, MCO, CTMvR, and HBBM); the Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Netherlands (PHMP and YTvdS); the Department of Hygiene and Epidemiology, University of Athens Medical School, Athens, Greece (CB and YC); and the International Agency for Research on Can