1. Department of Medicine, Division of Hematology, Section of Oncology, University of Colorado Medical Center, Denver, Colo.
2. Section of Oncology, Division of Hematology, University of Colorado Medical Center, Denver, Colo.
3. Hematology Trainee, USPHS 94757, presently Department of Medicine, Fitzsimons General Hospital, Denver, Col.
4. University of Colorado Medical Center, Denver, Colo.