1. Division of Hematology, Department of Medicine, the Children’s Hospital Medical Center, the Department of Pediatrics, Harvard Medical School, Boston, Mass. 02115; and the Department of Medicine, Albert Einstein College of Medicine, Bronx, N. Y. 10461.
2. Hematology Laboratories, University of California Medical Center, San Francisco, Calif. 94122; Recipient of USPHS Career Development Award AM 37237.
3. Harvard Medical School, Boston, Mass. 02115; Recipient of USPHS Career Development Award AM 35361-05.
4. Woman's Medical College, Philadelphia, Pa. 19129.
5. Division of Hematology, University of California School of Medicine, Los Angeles, Calif. 90024.
6. Acting Dean Albert Einstein College of Medicine of Yeshiva University, Bronx, N. Y. 10461.