1. Department of Hematology and Oncology; Nagoya Daini Red Cross Hospital; Nagoya; Japan
2. Division of Medical Oncology and Hematology; Cancer Institute Hospital; Tokyo; Japan
3. Division of Hematology/Oncology; Department of Internal Medicine; Tokai University Hospital; Isehara; Japan
4. Hematology and Stem Cell Transplantation Division; National Cancer Center Hospital; Tokyo; Japan
5. Clinical Research; Pfizer Japan Inc; Tokyo; Japan
6. Pfizer Inc; Cambridge; Massachusetts; USA