1. Division of Plastic Surgery, The Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
2. Department of Plastic and Reconstructive Surgery, Johns Hopkins Hospital, Baltimore, Maryland, USA
3. Division of Plastic, Reconstructive & Maxillofacial Surgery, R Adams Cowley Shock Trauma Center, University of Maryland School of Medicine, Baltimore, Maryland, USA
4. Department of Plastic and Reconstructive Surgery, University of Southern California, Los Angeles, California, USA