Arango, Elkin, Fredy Patiño, Mario Quintero, and Mónica Arenas. “Levels of Physical Activity, Barriers, and Stage of Change in an Urban Population from a Municipality in Colombia”. Colombia Médica 42, no. 3 (1): 352-361. Accessed August 14, 2024. https://colombiamedica.univalle.edu.co/colombiamedica311/index.php/comedica/article/view/882.