Affiliation: | (1) Department of Clinical Medicine, Faculty of Medical Sciences, University of Campinas - Unicamp, P.O.Box 6111, Zipe Code 13083-970 Campinas, SP, Brazil;(2) Bone Marrow Transplant Unit, Hemocenter, Faculty of Medical Sciences, University of Campinas - Unicamp, P.O.Box 6111, Zipe Code 13083-970 Campinas, SP, Brazil |