RICHARD J. BROWN,^* ALVIN W. SMITH,^** MARK C. KEYES<sup>***


*</sup>Dr. Brown is a Major in the Air Force Veterinary Corps and is Head, Comparative Pathology Branch, Naval Aerospace Medical Research Laboratory, Pensacola, Florida 32512.
^**Dr. Smith is a Lt. Colonel in the Air Force Veterinary Corps and is Chief, Research Animal Division, Navy Biomedical Research, Oakland, California.
^***Dr. Keyes is a Research Veterinarian, Marine Mammal Division, National Marine Fisheries Services, Seattle, Washington 98115.