Intrathecal prophylaxis with 12 versus 8 administrations reduces the incidence of central nervous system relapse in patients with newly diagnosed Philadelphia chromosome positive acute lymphoblastic leukemia. Issue 1 (11th June 2022) - Paul, Shilpa; Kantarjian, Hagop; Sasaki, Koji; Marx, Kayleigh; Jain, Nitin; Savoy, J. Michael; DiPippo, Adam; Jammal, Nadya; Bravo, Guillermo Montalban; Kadia, Tapan; Garcia‐Manero, Guillermo; Short, Nicholas J.; et al.