2Rodgers A, Vaughan P, Prentice T, et al. The World Health Report 2002 [ M ]. Geneva, Switzerland : World Health Organization, 2002 : 123.
3World Health Organization. Global status report on noncommunicable diseases 2010. http://apps, who. int/iris/bitstream/10665/44579/1/9789240686458_eng. pdf.