[1] Univ Helsinki, FIN-00014 Helsinki, Finland
[2] Univ Tromso, Inst Pharm, N-9001 Tromso, Norway
[3] Natl Hosp Norway, Oslo, Norway
[4] Oulu Univ, Oulu, Finland
[5] St Olavs Univ Hosp, Trondheim, Norway
[6] Turku Univ Hosp, Turku, Finland
[7] Univ Uppsala Hosp, Uppsala, Sweden
[8] Hematol Res Unit, Helsinki, Finland