1. Acute Leukemia Group B.
2. (CA-04457): The Mount Sinai Hospital, New York, N. Y.
3. (CA-02599): Roswell Park Memorial Institute, Buffalo, N. Y.; present address: Department of Preventive Medicine, State University of New York Upstate Medical Center, Syracuse, N.Y.
4. (CA-04457): The Mount Sinai Hospital, New York, N.Y
5. (CA-04646): Mayo Clinic, Rochester, Minn.
6. (CA-04326): Dartmouth Medical School, Hanover, N. H.
7. TOWNSEND: Montreal General Hospital, Montreal, Canada.
8. (CA-07757): West Virginia University, Morgantown, W. Va.
9. (CA-03927): Bowman Gray School of Medicine, Winston-Salem, N. C.
10. (CA-02599): Roswell Park Memorial Institute, Buffalo, N. Y.