1. Institute of Forensic Science Ministry of Public Security Beijing P. R. China
2. Faculty of Forensic Medicine, Zhongshan School of Medicine Sun Yat‐sen University Guangzhou P. R. China
3. Guangdong Province Translational Forensic Medicine Engineering Technology Research Center Zhongshan School of Medicine Sun Yat‐sen University Guangzhou P. R. China
4. Guangzhou Forensic Institute Guangzhou P. R. China