1. Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
2. Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, Maryland, USA
3. Aptima, Inc., Woburn, Massachusetts, USA
4. Physicians for Peace, Norfolk, Virginia, USA
5. US Army South, Joint Base San Antonio-Fort Sam Houston, Texas, USA
6. FHI 360, Durham, North Carolina, USA
7. Defense Institute for Medical Operations, Joint Base San Antonio-Lackland, Texas, USA