[1] Uniformed Serv Univ Hlth Sci, Dept Mil & Emergency Med, Consortium Hlth & Mil Performance, Bethesda, MD 20814 USA
[2] Ft Belvoir Community Hosp, Family Med, Ft Belvoir, VA USA
[3] Def Hlth Headquarters, Dis Management & Populat Hlth Policy & Oversight, Dis Prevent, Hlth Serv Policy & Oversight OASD HA, Falls Church, VA USA
[4] Def Hlth Headquarters, Air Force Med Support Agcy, Falls Church, VA USA
[5] Univ Oklahoma, Athlet Med, Norman, OK 73019 USA
[6] Childrens Natl Hosp, Pediat Primary Care, Washington, DC USA
[7] Ann & Robert H Lurie Childrens Hosp Chicago, Pediat Hematol & Oncol, Chicago, IL 60611 USA
[8] Univ Washington Med Sports Med Ctr Husky Stadium, Seattle, WA 98195 USA