1. Aron, L., Honberg, R., Duckworth, K., Kimball, A., Edgar, E., Carolla, B., et al. (2009).Grading the States 2009: A report on America’s health care system for adults with serious mental illness. Arlington, TX: National Alliance on Mental Illness.
2. Bailar, J. C. & Hoaglin, D. C. (Eds). (2009).Medical uses of statistics(3rd ed.). Hoboken, NJ: Wiley.
3. Beck, T. & Steer, R. A. (1993).Beck anxiety inventory manual. San Antonio, TX: The Psychological Corporation, Harcourt Brace & Co.
4. Bezchlibnyk-Butler, K. Z., Jeffries, J. J. & Virani, A. (Eds.). (2007).Clinical handbook of psychotropic drugs(17th ed.). Ashland, OH: Hogrefe & Huber.
5. Census and Statistics Department. (2010).Bi-annual census and statistics report 2009-2010. Hong Kong: The Government Printers.