Longitudinal Change in Disability and Functioning in Patients With Moderate-to-Severe Parkinson’s Disease: A Population-Based Assessment Using the World Health Organization Disability Assessment Schedule 2.0 - Hsun-Hua Lee; Lung Chan; Wen-Chou Chi; Chia-Feng Yen; Hua-Fang Liao; Tsan-Hon Liou; Chien-Tai Hong (Asia Pacific Journal of Public Health, 2026)