1. Military Nutrition Division, US Army Research Institute of Environmental Medicine, 15 Kansas Street, Bldg. 42, Natick, MA 01760, USA.
2. Norwegian Defence Research Establishment, Instituttvn 20, N-2007 Kjeller, Norway.
3. Thermal Mountain and Medicine Division, US Army Research Institute of Environmental Medicine, 15 Kansas Street, Bldg. 42, Natick, MA 01760, USA.
4. Pennington Biomedical Research Center, Louisiana State University System, 6400 Perkins Rd., Baton Rouge, LA 70808, USA.