Alberts JL, Rosenfeldt AB, Lopez-Lennon C, Suttman E, et al. Effectiveness of a Long-Term, Home-Based Aerobic Exercise Intervention on Slowing
the Progression of Parkinson Disease: Design of the Cyclical Lower Extremity
Exercise for Parkinson Disease II (CYCLE-II) Study. Phys Ther 2021;101.
PMID: 34363478