A Multicenter Phase 3 Randomized, Open-Label Study of Bosutinib Versus Imatinib in Adult Patients With Newly Diagnosed Chronic Phase Chronic Myelogenous Leukemia (Bosutinib trial in First line chrOnic myelogenous leukemia tREatment; BFORE). A Multicenter Phase 3 Randomized, Open-Label Study of Bosutinib Versus Imatinib in Adult Patients With Newly Diagnosed Chronic Phase Chronic Myelogenous Leukemia.