Gautam Borthakur, Hagop Kantarjian, Farhad Ravandi, Weiguo Zhang, Marina Konopleva, John J. Wright, Stefan Faderl, Srdan Verstovsek, Sheela Mathews, Michael Andreeff, Jorge E. Cortes. Phase I study of sorafenib in patients with refractory or relapsed acute leukemias. Haematologica 2010;96(1):62-68; https://doi.org/10.3324/haematol.2010.030452.