1. Division of Hematology, Departments of Medicine and Pathology, Allentown Hospital, Allentown, Pa., and the Division of Hematology, Hershey Medical School, Pennsylvania State University, Hershey, Pa.
2. Division of Hematology, Departments of Medicine and Pathology, Allentown Hospital, Allentown Pa.; Assistant Professor of Clinical Medicine, Hershey Medical School, Pennsylvania State University, Hershey, Pa.