1. Department of Dermatology, Yantai Yuhuangding Hospital, Yantai, Shandong 264000, P.R. China
2. Department of Information, Yantai Yuhuangding Hospital, Yantai, Shandong 264000, P.R. China
3. Department of Laboratory and Oncology, Yantai Yuhuangding Hospital, Yantai, Shandong 264000, P.R. China