Subjects without current active infection or recent multiple recurrence of infections must have adequate organ function as defined by renal function (creatinine less than or equal to 2 mg per dl; less than or equal to 2+ proteinuria); hepatic function (bilirubin less than or equal to 1.5 mg per dl; prothrombin time less than or equal to 1.3 x control); hematologic function (WBC greater than or equal to 2500 per mm(3); granulocytes greater than or equal to 1200 per mm(3); platelet greater than or equal to 100,000; hematocrit greater than or equal to 26).