1. Department of Plastic Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania.
2. Center for Genomic Sciences, Allegheny-Singer Research Institute, Pittsburgh, Pennsylvania.
3. Department of Surgery, Allegheny General Hospital, Pittsburgh, Pennsylvania.
4. Department of Orthopedics. The Ohio State University, Columbus, Ohio.
5. Center for Microbial Interface Biology, Department of Microbial Infection and Immunity. The Ohio State University, Columbus, Ohio.