Clinical Trials Information Group, Shijiazhuang, China
Beijing Friendship Hospital, Capital Medical University, Beijing, Beijing, China
Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China
Huashan Hospital Affiliated to Fudan University, Shanghai, Shanghai, China
The Fourth Hospital of Hebei Medical University, Shijia Zhuang, Hebei, China
Cancer Hospital Chinese Academy of Medical Sciences, Beijing, Beijing, China