Jiangsu Cancer Hospital, Nanjing, Jiangsu, China
Affiliated Hospital, Academy of Military Medical Sciences, Beijing, China
Beijing Luhe Hospital, Capital Medical University, Beijing, Beijing, China
Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
Henan Cancer Hospital, Henan, China
Liuzhou workers' Hospital, Liuzhou, Guangxi, China
Hunan Cancer Hospital, Changsha, Hunan, China
The first affiliated hospital of sun yat-sen university, Guangzhou, China