[1] Peking Univ, Shenzhen Hosp, Shenzhen, Peoples R China
[2] Peking Univ, Peoples Hosp, Beijing, Peoples R China
[3] Anal Grp Inc, New York, NY USA
[4] Anal Grp Inc, Beijing, Peoples R China
[5] Pfizer Inc, New York, NY USA
[6] Bristol Myers Squibb, Princeton, NJ USA
[7] Merck, New York, NY USA
[8] Pfizer Investment Co Ltd, Beijing, Peoples R China
[9] Anal Grp Inc, Boston, MA USA