1. Savaid Medical School, University of Chinese Academy of Sciences, Beijing, P.R. China.
2. School of Public Health, Capital Medical University, Beijing, P.R. China.
3. College of Life Science, University of Chinese Academy of Sciences, Beijing, P.R. China.
4. Divison of Psychiatry, University of Western Australia, Crawley, Australia.
5. School of Medical and Health Sciences, Edith Cowan University, Perth, Australia.