Affiliation: | a Department of Surgery, Orthopedic Clinic, Martin Army Community Hospital, 7950 Martin Loop, Fort Benning, GA 31905-5637, USA b Department of Orthopedics, The Permanente Medical Group Inc, 4501 Sand Creek Road, Antioch, CA 94531, USA c Department of Podiatric Surgery, Kaiser Permanente, Antioch, CA, USA |