1. From Vertex Pharmaceuticals (J.J., D.J.C., S.M.L., I.J., X.M., D.S., C.S., J.D.O., B.H., C.B., P.N.) and Brigham and Women’s Hospital (S.G.W.) — both in Boston; Lotus Clinical Research, Pasadena (A. Beaton), Cedars–Sinai Medical Center, Los Angeles (P.F.W.), and White Mountain Institute, Sea Ranch (P.F.W.) — all in California; JBR Clinical Research, Salt Lake City (T.B.); Rush University Medical Center, Chicago (A. Buvanendran); Duke University School of Medicine, Durham, NC (A.S.H.); the University of...