van Gool, C. “The Course of Chronic Disease, Depression, and Health Behavior in Longitudinal Perspective: Findings Concerning the Epidemiology of Aging”. Tijdschrift voor Gerontologie en Geriatrie, no. 1 (January 30, 2024). Accessed April 11, 2026. https://testplatform.openjournals.nl/tgg/article/view/18663.