1. Department of Human Anatomy, Histology and Embryology and K.K. Leung Brain Research Centre Air Force Military Medical University Xi'an China
2. Department of Emergency Medicine Inner Mongolia Armed Police Corps Hospital Hohhot China
3. Department of Human Anatomy, School of Basic Medical Sciences and Forensic Medicine North Sichuan Medical College Nanchong China
4. Department of Anatomy Medical School of Yan'an University Yan'an China
5. Department of Neurosurgery General Hospital of Northern Theater Command Shenyang China