1. Medical Research Center, Brookhaven National Laboratory, Upton, N. Y.
2. Division of Experimental Pathology, Medical Research Center, Brookhaven National Laboratory, Upton, N. Y.
3. South African Atomic Energy Board, Pretoria, South Africa. Research Collaborator, Medical Research Center, Brookhaven National Laboratory, Upton, N. Y.
4. Medical Research Center, Brookhaven National Laboratory, Upton, N.Y.
5. Veterinary Clinic Building, University of Minnesota, St. Paul, Minn.; Research Collaborator, Medical Research Center, Brookhaven National Laboratory, Upton, N. Y.