1. Department of Dermatology, Huashan Hospital, Fudan University, Shanghai 200040, China
2. The Shanghai Institute of Dermatology, Shanghai 200443, China
3. Department of Dermatology, Beijing Hospital, National Center of Gerontology, Beijing 100730, China
4. Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
5. Department of Thyroid and Breast Surgery, General Surgery, Huashan Hospital, Fudan University, Shanghai 200040, China