1. From Memorial Sloan Kettering Cancer Center (A. Drilon, J.F.H., R.B., M.L., D.M.H.) and Weill Cornell Medical College (A. Drilon, D.M.H.), New York; University of Texas Southwestern Medical Center–Children’s Health, Dallas (T.W.L.); Stanford Cancer Center, Stanford University, Palo Alto (S.K.), Children’s Hospital Los Angeles, Keck School of Medicine, University of Southern California (L.M.), and UCLA David Geffen School of Medicine (N.F.), Los Angeles, and Loxo Oncology, South San Francisco (B.B.T., K.E...