Bijnen, FCHFeskens, EJMCasperen, CJNagelkerke, NMosterd, WLKromhout, D2025-03-172025-03-171999https://rivm.openrepository.com/handle/10029/637802Baseline and previous physical activity in relation to mortality in elderly men. The Zutphen Elderly StudyArticleAm J Epidemiol 1999; 150:1289-962025-03-17