[1] GlaxoSmithKline, Brentford, England
[2] Shenzhen Peoples Hosp, Shenzhen, Peoples R China
[3] Guangzhou Med Univ, Guangzhou, Peoples R China
[4] Peking Univ Third Hosp, Beijing, Peoples R China
[5] Sichuan Univ, West China Hosp, Chengdu, Peoples R China
[6] North Kuanren Gen Hosp, Chongqing, Peoples R China
[7] GlaxoSmithKline, Shanghai, Peoples R China