From the Department of Hematology and Chemotherapy, Department of Pathology and Clinical Laboratories, Aichi Cancer Center Hospital, Nagoya, Japan; the Laboratory of Chemotherapy and Laboratory of Immunology, Aichi Cancer Center Research Institute, Nagoya, Japan; the Department of Internal Medicine, Japanese Red Cross Nagoya First Hospital, Nagoya, Japan; and the Department of Internal Medicine, Nagoya University School of Medicine, Nagoya, Japan. (At 1997-09-15)