1. School of Forensic Medicine, Shanxi Medical University, Jinzhong, P.R. China
2. Key Laboratory of Forensic Toxicology of Ministry of Public Security, Jinzhong, P.R. China
3. Department of Laboratory Science, Shanxi Medical University, Taiyuan, P.R. China
4. The Sixth Hospital of Shanxi Medical University (General Hospital of Tisco), Taiyuan, P.R. China