See related article at [www.cmaj.ca/lookup/doi/10.1503/cmaj.1910892]2 KEY POINTS Parkinson disease is chronic and progressive in nature, decreasing the quality of life for both patients with the disease and their caregivers and placing an onerous economic burden on society.12 The first
Grimes et al. (Sun,) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: