The SUSTAIN Study Compares the Effects of Sustained and Immediate-release Pramipexole on the noctUrnal Symptoms of paTients With Advanced ParkInsoN's Disease Who Also Take L-Dopa

Tianjin Medical University General Hospital, Tianjin

Peking Union Medical College Hospital, Beijing

Beijing Hospital, Beijing

The First Hospital of Chinese Medical University, Shenyang

Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai

Brain Hospital Affiliated to Nanjing Med University, Nanjing

The Second Affiliated Hospital of Soochow University, Suzhou

2nd Affiliated Hosp Zhejiang University College of Medical, Hangzhou

Wuhan Union Hospital, Wuhan

The First Afiliated Hospital, Sun Yet-sen University, Guangzhou

West China Hospital, Chengdu

First Affiliated Hospital of Xi'an JiaoTong University, Xi'an