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Achttien, Retze J., Jan van Lieshout, Michel Wensing, Maria Nijhuis-van der Sanden, and J Bart Staal. "The Decline in Physical Activity in Aging People Is Not Modified By Gender or the Presence of Cardiovascular Disease." Eur J Public Health 2020.

Achttien, Retze J., et al. "The Decline in Physical Activity in Aging People Is Not Modified By Gender or the Presence of Cardiovascular Disease." Eur J Public Health 2020.