Gillette DB, Petrescu-Prahova M, Herting JR, Belza B. A Pilot Study of Determinants of Ongoing Participation in EnhanceFitness: A Community-Based Group Exercise Program for Older Adults. J Geriatr Phys Ther. 2015 Oct-Dec;38(4):194-201. doi: 10.1519/JPT.00