1. College of Pharmacy, Weifang Medical University, Weifang 261053, China
2. Department of Pathology, Weifang Medical University, Weifang 261053, China
3. Department of Medical Microbiology, Weifang Medical University, Weifang 261053, China
4. Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing 100700, China