[1] Stanford Univ, Div Plast & Reconstruct Surg, Palo Alto, CA 93404 USA
[2] Univ Washington, Dept Surg, Seattle, WA 98195 USA
[3] Univ Washington, Ctr Outcomes Res Rehabil, Seattle, WA 98195 USA
[4] Harvard Univ, Massachusetts Gen Hosp, Cambridge, MA 02138 USA