1. Radiobiology and Biosciences Divisions of the USAF School of Aerospace Medicine, Aerospace Medical Division, AFSC, United States Air Force, Brooks Air Force Base, Texas.
2. Space Radiation Branch, Radiobiology Division, USAF School of Aerospace Medicine, Brooks AFB, Texas.
3. Cytology-Pathology Branch, Biosciences Division, USAF School of Aerospace Medicine, Brooks AFB, Texas