Physical activity and functional disability among older adults in Ghana: The moderating role of multi-morbidity.

- Awuviry-Newton, Kofi; Amponsah, Mary; Amoah, Dinah; Dintrans, Pablo Villalobos; Afram, Adjeiwa Akosua; Byles, Julie; Mugumbate, Jacob Rugare; Kowal, Paul; Asiamah, Nestor