1. Department of Dermatology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
2. Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
3. University of Pittsburgh Cancer Institute, Pittsburgh, PA, USA
4. The 3rd Affiliated Hospital of Jianghan University, Wuhan, Hubei, China
5. Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA