4World Health Organization. Estimates of healthy life expectancy for 191 countries in the year 2000: methods and resuhs[EB/OL]. [2008- 06-05]. http://www. whc.int/healthinfo/paper38. pdf.
5Sullivan DF. A single index of mortality and morbidity. HSMHA Health Rep, 1971,86:347-354.
6Wilkins R, Adams OB. Health expectancy in Canada, late 1970s: demographic, regional, and social dimensions. Am J Public Health, 1983,73 : 1073-1080.
7Anand S, Hanson K. Disability-adjusted life years: a critical review. J Health Econ, 1997,16:685-702.
8National burden of disease studies[EB/OL]. [2008-06-05]. http:// www. who. int/mip/2003/other_documents/en/nbdstudies.pdf.
9World Health Organization. Global burden of disease 2000:version 2 methods and results [ EB/OL] . [ 2008-06-05 ]. http:// www. who. int/healthinfo/paper50. pdf.
10World Health Organization. Global Burden of Disease in 2002: data sources, methods and results [ EB/OL]. [ 2008-06-05 ]. http ://www. who. int/healthinfo/paper54. pdf.
