[1] Tokyo Metropolitan Otsuka Hosp, Div Hematol, Tokyo, Japan
[2] Ichinomiya Municipal Hosp, Div Hematol, Ichinomiya, Aichi, Japan
[3] Japanese Red Cross Med Ctr, Dept Hematol, Tokyo, Japan
[4] Osaka Med Ctr Canc & Cardiovasc Dis, Dept Hematol Oncol, Osaka, Japan
[5] Hyogo Coll Med, Dept Internal Med, Div Hematol, Nishinomiya, Hyogo, Japan
[6] Sapporo Hokuyu Hosp, Dept Hematol, Sapporo, Hokkaido, Japan
[7] Natl Hosp Org, Nagoya Med Ctr, Nagoya, Aichi, Japan
[8] Univ Tsukuba, Dept Hematol, Fac Med, Tsukuba, Ibaraki, Japan
[9] Nagasaki Univ Hosp, Atom Bomb Dis Inst, Dept Hematol, Nagasaki, Japan
[10] Nihon Univ, Sch Med, Dept Hematol & Rheumatol, Tokyo, Japan
[11] Univ Tokyo, Grad Sch Med, Dept Hematol & Oncol, Tokyo, Japan
[12] Kurashiki Cent Hosp, Transfus & Haemapheresis Ctr, Dept Haematol Oncol, Okayama, Japan
[13] Otsuka Pharmaceut Co Ltd, Diagnost Div, Tokushima, Japan
[14] Osaka Univ, Grad Sch Med, Dept Funct Diagnost Sci, Osaka, Japan
[15] Japanese Assoc Med Sci, Tokyo, Japan