Nonmotor symptoms are independently associated with impaired health-related quality of life in Chinese patients with Parkinson's disease.
Li
Huijuan
H
Department of Nursing, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, People's Republic of China.
Zhang
Meifen
M
Chen
Ling
L
Zhang
June
J
Pei
Zhong
Z
Hu
Ailing
A
Wang
Qing
Q