Frerichs RRJohn Snow - a historical giant in epidemiology. http://www.ph.ucla.edu/epi/snow.html
2.
Beaglehole R. , Bonita R.Challenges for public health in the global context — prevention and surveillance. Scand J Public Health2001; 29: 81 - 83.
3.
Högberg U., Wall S.Secular trends in maternal mortality in Sweden from 1750 to 1980. Bull World Health Organ1986; 64: 79 - 84.
4.
Andersson T.Survival of mothers and their offspring in 19th century Sweden and contemporary rural Ethiopia. Umeå: Umeå University Medical Dissertations, new series no. 684, 2000.
5.
Stephens J., Alonso PL, Byass P., Snow RWTropical epidemiology: a system for continuous demographic monitoring of a study population. Methods Inf Med1989; 28: 155- 9.
6.
Unicef.The state of the world's children 2001. New York: Unicef, 2001.
7.
Berhane Y., Andersson T., Wall S., Byass P., Högberg U.Aims, options and outcomes in measuring maternal mortality in developing societies . Acta Obstet Gynecol Scand2000 ; 79: 968- 72.
8.
Tollman S., Zwi ABHealth system reform and the role of field sites based upon demographic and health surveillance. Bull World Health Organ2000; 78: 125-34.
9.
International Centre For Diarrhoeal Disease Research, Bangladesh ( ICDDR,B). http://www.icddrb.org
10.
Indepth: An international network of field sites with continuous demographic evaluation of populations and their health in developing countries. http://www.indepth-network.org
11.
Tollman S.Butajira Health Project. An evaluation of a demographic surveillance site. Sida Evaluation 00/11. Stockholm: Swedish International Development Cooperation Agency, 2000 .
12.
Lopez ADCounting the dead in China. Br Med J1998; 317: 1399 - 400.
13.
Outlaw JAMThe Household Registration System. New York: Population Council, 2000 .