1. Centers for Disease Control and Prevention. Update: Outbreak of severe acute respiratory syndrome--worldwide, 2003. MMWR Morb Mortal Wkly Rep 2003;52:241-26, 248.
2. World health organization. Situation Update-SARS. Available at http://www.who.int/mediacentre/releases/2003/pr31/en/. .
3. Hong Kong Department of Health Report. Main findings of an investigation into the outbreak of severe acute respiratory syndrome at Amoy Gardens. http://www.info.gov.hk/dh/ap.htm(accessed April 19, 2003). .
4. Clinical Features and Short-term Outcomes of 144 Patients With SARS in the Greater Toronto Area
5. Ksiazek TG, Erdman D, Goldsmith C, Zaki SR, Peret T, Emery S, Tong S, Urbani , C , Comer , JA , Lim , W , Rolin PE, Dowell S, Ling AE, Humphrey C, Shieh WJ, Guarner J, Paddock CD, Rota P, Fields B, DeRisi J, Yang JY, Cox N, Hughes J, LeDuc JW, Bellini W, Anderson LJ, the SARS Working Group. ANovel Coronavirus Associated with Severe Acute Respiratory Syndrome. New Eng J Med, 2003 http: //www.nejm.org, May 10; 2003;.