Determinants of physical activity in wheelchair users with spinal cord injury or lower limb amputation: perspectives of rehabilitation professionals and wheelchair users
van den Akker, Lizanne E.; Holla, Jasmijn F.M.; Dadema, Tessa (Faculteit Gezondheid); Visser, Bart; Valent, Linda J.; de Groot, Sonja; Dallinga, Joan M.; Deutekom, Marije