1. Cardiology Section, VA Medical Center, Albuquerque, New Mexico.
2. Colorado Center for Altitude, Medicine and Physiology, UCHSC, Aurora, Colorado.
3. Diabetes Center, Vanderbilt University Medical Center, Nashville, Tennessee.
4. Institute of Adaptive and Spaceflight Physiology, Grez, Austria.
5. Medical Director, SED Central Laboratory, Albuquerque, New Mexico.
6. Biostatistician (retired), Division of Life Sciences, Los Alamos National Laboratory, Los Alamos, New Mexico.