Philadelphia chromosome‐negative acute leukemia in patients with chronic myeloid leukemia. Issue 10 (28th July 2019) - Gong, Zimu; Xu, Mina L.; Chen, Mingyi; Cui, Wei; Kantarjian, Hagop M.; Cortes, Jorge E.; Zhou, Ting; Tang, Guilin; Wang, Wei; Medeiros, L. Jeffrey; Hu, Shimin