[1] Univ Campinas UNICAMP, Inst Biol, Campinas, Brazil
[2] Univ Estadual Campinas, Hematol & Transfus Med Ctr, Hemoctr, Campinas, Brazil
[3] Univ Campinas UNICAMP, Hematol & Transfus Ctr, Campinas, Brazil
[4] Univ Campinas UNICAMP, Hematol & Hemotherapy Ctr, Campinas, Brazil