1. From the Jonsson Comprehensive Cancer Center, Geffen School of Medicine at UCLA, Los Angeles (R.S.F.), the City of Hope Comprehensive Cancer Center and Beckman Research Institute, Duarte (D.L.), and Genentech, South San Francisco (W.V., S.H., Y.W.) — all in California; the People’s Liberation Army Cancer Center, Jinling Hospital, Nanjing (S.Q.), and Roche Product Development (D.-Z.X., J.L., C.H.) and Jiahui International Cancer Center, Jiahui Health (A.X.Z.), Shanghai — all in China; National Cancer...