1. Mount Sinai School of Medicine, New York, N.Y., New York University School of Medicine, New York, N.Y., and The Rockefeller University, New York, N.Y.
2. Department of Medicine (Hematology), Mount Sinai School of Medicine, New lark, N.Y.
3. New York University School of Methcine, New York, N.Y.
4. The Rockefeller University, New York, N.Y.
5. Mount Sinai School of Medicine, New York, N.Y.
6. New York University School of Medicine, New York, N.Y.