1. USAF, 59th Medical Wing, Office of the Chief Scientist, Science and Technology , Joint Base San Antonio, Lackland, TX 78236, USA
2. USAF, David Grant USAF Medical Center, Clinical Investigation Facility , Travis AFB, CA 94533, USA
3. USAF, 711th Human Performance Wing, Airman Biosciences Division , Wright Patterson AFB, OH 45433, USA
4. School of Nursing, University of Nevada, Las Vegas , Las Vegas, NV 89154, USA