1. A novel coronavirus associated with severe acute respiratory syndrome;TG Ksiazek;N Engl J Med,2003
2. World Health Organization. Summary of probable SARS cases with onset of illness from 1 November 2002 to 31 July 2003. 21 Apr 2004. Available from: http://www.who.int/csr/sars/country/table2004_04_21/en. Cited 20 Dec 2016.
3. World Health Organization. Situation updates–SARS. 2016. Available from: http://www.who.int/csr/don/archive/disease/severe_acute_respiratory_syndrome/en. Cited 20 Dec 2016.
4. World Health Organization. Severe acute respiratory syndrome (SARS) in Singapore: Update 2. 24 Sep 2003. Available from: http://www.who.int/csr/don/2003_09_24/en. Cited 20 Dec 2016.
5. World Health Organization. Severe acute respiratory syndrome (SARS) in Taiwan, China. 17 Dec 2003. Available from: http://www.who.int/csr/don/2003_12_17/en. Cited 20 Dec 2016.