Chronic myelogenous leukemia occurring in two brothers: The opposite sides of the same coin? oleh Evgenia Verrou, Kyriaki Tsirou, Nikolaos Karampatzakis, Theodora Triantafyllou, Aggeliki Sevastoudi, Georgia I. Grigoriadou, Pavlina Konstantinidou, Panagiotis Panagiotidis, Eirini Katodritou