1. Department of Dermatology, Chongqing Hospital of Traditional Chinese Medicine, Chongqing, China.
2. Department of Dermatology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
3. Laser and Cosmetic Medicine, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
4. Division of Internal Medicine,University Hospital of Basel, University of Basel, Basel, Switzerland.