[1] Univ Michigan, Hlth Syst, Plast & Reconstruct Surg Sect, Ann Arbor, MI 48109 USA
[2] Vet Affairs Ctr Practice Management & Outcomes Re, Ann Arbor, MI USA
[3] Univ Michigan, Dept Biostat, Ann Arbor, MI 48109 USA
[4] Univ Michigan, Dept Phys Med & Rehabil, Ann Arbor, MI 48109 USA
[5] Univ Michigan, Dept Anesthesiol, Ann Arbor, MI 48109 USA
[6] St Joseph Mercy Hosp, Plast & Reconstruct Surg Sect, Ann Arbor, MI 48104 USA
[7] Henry Ford Hlth Syst, Plast & Reconstruct Surg Sect, Detroit, MI USA
[8] William Beaumont Hosp, Plast & Reconstruct Surg Sect, Troy, MI USA