8[1]World Health Organization. The World Health Report 2002: reducing risks, promoting healthy life. http://www.who.int/whr/2002/en/available in Dec, 2002.
9[2]World Health Organization. Surveillance of stoke: the WHO STEPwise approach. http://www5.who.int/noncommunicable-diseases/download. cfm?id=0000000402, available in Dec, 2002.
10[3]World Health Organization. Surveillance of risk factors for noncommunicable diseases: The WHO STEPwise approach, 2001. http://www5.who.int/non communicable-diseases/download.cfm?id=0000000269 avaiable in Dec, 2002.