1. Department of Dermatology, Zaozhuang Municipal Hospital, Zaozhuang, Shandong 277100, P.R. China
2. Department of Neurosurgery, Zaozhuang Municipal Hospital, Zaozhuang, Shandong 277100, P.R. China
3. Department of Pharmacy, Zaozhuang Municipal Hospital, Zaozhuang, Shandong 277100, P.R. China