DIRECTOR OF RESEARCH, US ARMY INSTITUTE OF SURGICAL RESEARCH/HEMATOLOGY-ONCOLOGY CONSULTANT TO THE US ARMY SURGEON GENERAL/ PROFESSOR OF MEDICINE, UNIFORMED SERVICES UNIVERSITY, US ARMY INSTITUTE OF SURGICAL RESEARCH
PHYSICIAN, DIRECTOR AND MEDICAL DIRECTOR OF THE ADULT STEM CELL TRANSPLANTATION AND STEM CELL TRANSPLANTATION SURVIVORSHIP PROGRAMS, DANA FARBER CANCER INSTITUTE