S1.

Location of centers and numbers of patients enrolled in each center (N=429)

Center	Location	n (%)
Peking University Cancer Hospital & Institute	Beijing	59 (13.8)
Renji Hospital, Shanghai Jiaotong University	Shanghai	52 (12.1)
Weifang People’s Hospital	Weifang	26 (6.1)
The First Affiliated Hospital of Nanchang University	Nanchang	21 (4.9)
The First Hospital of Jilin University	Changchun	19 (4.4)
Nanfang Hospital	Guangzhou	18 (4.2)
Fujian Provincial Cancer Hospital	Fuzhou	18 (4.2)
Guangdong General Hospital	Guangzhou	14 (3.3)
Zhongshan Hospital, Fudan University	Shanghai	13 (3.0)
Hangzhou First People’s Hospital	Hangzhou	13 (3.0)
The First Affiliated Hospital, Sun Yat-sen University	Guangzhou	13 (3.0)
The Second Affiliated Hospital of Fujian Medical University	Quanzhou	13 (3.0)
The Affiliated Hospital of Qinghai University	Xining	12 (2.8)
Guangdong Provincial Hospital of Chinese Medicine	Guangzhou	12 (2.8)
The Second Hospital of Dalian Medical University	Dalian	11 (2.6)
Shanghai Ruijin Hospital	Shanghai	10 (2.3)
Shandong Provincial Hospital Affiliated to Shandong University	Jinan	10 (2.3)
Harbin Medical University Cancer Hospital	Harbin	9 (2.1)
Tianjin Medical University General Hospital	Tianjin	9 (2.1)
The First Affiliated Hospital of Xi’an Jiaotong University	Xi’an	9 (2.1)
Peking University People’s Hospital	Beijing	8 (1.9)
National Center of Gerontology	Beijing	8 (1.9)
Beijing Friendship Hospital	Beijing	7 (1.6)
Jiangsu Province Hospital	Nanjing	7 (1.6)
The Second Hospital of Jilin University	Changchun	7 (1.6)
First Affiliated Hospital of Xiamen University	Xiamen	6 (1.4)
West China Hospital	Chengdu	6 (1.4)
Shanxi Provincial Cancer Hospital	Taiyuan	5 (1.2)
The Affiliated Hospital of Qingdao University	Qingdao	3 (0.7)
Peking University International Hospital	Beijing	3 (0.7)
Zhongshan Hospital Xiamen University	Xiamen	3 (0.7)
Xijing Hospital	Xi’an	2 (0.5)
The 307th Hospital of Chinese People’s Liberation Army	Beijing	2 (0.5)
Fudan University Shanghai Cancer Center	Shanghai	1 (0.2)