Affiliation: | (1) General Surgery Service, Department of Surgery, Madigan Army Medical Center, Tacoma, WA 98431, USA;(2) General Surgery Service, Department of Surgery, Madigan Army Medical Center, Tacoma, WA 98431, USA;(3) General Surgery Service, Department of Surgery, Madigan Army Medical Center, Tacoma, WA 98431, USA;(4) General Surgery Service, Department of Surgery, Madigan Army Medical Center, Tacoma, WA 98431, USA |