1. From the Abramson Cancer Center, University of Pennsylvania (A.E.P.), and Thomas Jefferson University (M.K.) — both in Philadelphia; Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori, Istituto Di Ricovero e Cura a Carattere Scientifico (IRCCS), Meldola (G.M.), L. and A. Seràgnoli Institute of Hematology, Bologna University Medical School, Bologna (S.P.), Ospedali Riuniti Villa Sofia-Cervello, Palermo (F.F.), and IRCCS San Raffaele Scientific Institute, Milan (F.C.) — all in Italy;...