M.D. Prof. Zafer Gülbaş worked in the Bone Marrow Transplantation Department of the Fred Hutchinson Cancer Research Center, Seattle as a resident in 1994 and the Molecular Hematology and Treatment Department of the MD Anderson Cancer Research Center, USA in 1998 as a visiting physician. He also worked at the GMP cell processing laboratory at the Princess Margaret Hospital Treatment Center, Canada in 2004. His clinical expertise lies in the diagnosis and treatment of hematologic malignancies, stem cell transplantation, cellular therapy, and clinical applications of flow cytometry.