Comparison of activities of daily living impairments in Parkinson's disease patients as defined by the Pill Questionnaire and assessments by neurologists

Wei Ju Lee, Yung Yee Chang, J.-J. Lin, Yueh Feng Sung, Jie Yuan Li, Shuu Jiun Wang, Rou Shayn Chen, Yuan Han Yang, Chaur-Jong Hu, Chon Haw Tsai, Han Cheng Wang, Shey Lin Wu, Ming Hong Chang, Jong Ling Fuh