1. Department of Dermatology, The Second Affiliated Hospital, Xi’an Jiaotong University, Xi’an 710004, China
2. Department of Otolaryngology-Head and Neck Surgery, The Second Affiliated Hospital, Xi’an Jiaotong University, Xi’an 710004, China
3. Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA