1. Department of Physiology, Basic Medical and Public Health School, Jinan University, Guangzhou, China.
2. Faculty of Medicine, International School, Jinan University, Guangzhou, China.
3. Department of Physiology & Pharmacology, Loma Linda University, Loma Linda, California, USA.
4. Department of Neurosurgery, Loma Linda University, Loma Linda, California, USA.