[1] Charles Univ Prague, Gen Teaching Hosp, Prague, Czech Republic
[2] Charles Univ Prague, Fac Med 1, Prague, Czech Republic
[3] Inst Hematol & Blood Transfus, CR-12820 Prague, Czech Republic
[4] Gen Teaching Hosp, Dept Med 1, Prague, Czech Republic
[5] Fac Hosp Kralovske Vinohrady, Dept Clin Hematol, Prague, Czech Republic