1. Department of Radiotherapy; Affiliated Hospital of Xuzhou Medical University; Xuzhou, Jiangsu 221002 China
2. Department of Dermatology; Affiliated Huai'an Hospital of Xuzhou Medical University; Huai'an Jiangsu 223002 China
3. Department of Dermatology; Affiliated Hospital of Xuzhou Medical University; Xuzhou Jiangsu 221002 China