1. Department of Pharmaceutical Sciences, University of New Mexico-Health Sciences Center, Albuquerque, New Mexico 87131
2. Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, West Virginia
3. Biosciences Division, Los Alamos National Laboratories, Los Alamos, New Mexico 87545
4. Department of Civil Engineering, University of New Mexico, Albuquerque, New Mexico 87131
5. Southwest Research and Information Center, Albuquerque, New Mexico 87196
6. Department of Earth and Planetary Sciences
7. Department of Geography, University of New Mexico, Albuquerque, New Mexico 87131