1. Graduate Education Office, Enlisted to Medical Degree Preparatory Program, Uniformed Services University of the Health Sciences , Bethesda, MD 20814, USA
2. Department of System Biology, George Mason University , Fairfax, VA 20120, USA
3. Naval Medical Research Command , Silver Spring, MD 20910, USA
4. Department of Military and Emergency Medicine, Uniformed Services University of the Health Sciences , Bethesda, MD 20814, USA