1. Department of Veteran Affairs – VA Illiana Health Care System, Danville, IL, USA
2. VA Edwards Hines Jr. Health Care System, Hines, IL, USA
3. University of Illinois Springfield, Springfield, IL, USA
4. Indiana University Purdue University Indianapolis (IUPUI), Indianapolis, IN, USA
5. Commonwealth University of Pennsylvania (Lock Haven), Lock Haven, PA, USA
6. Yale School of Medicine, New Haven, CT, USA