6Flegal KM, Carrol MD, Kuczmarski RJ, et al. Overweight and obesity in the United States: prevalence and trends, 1960-1994. Int J Obes Relat Metab Disord, 1998, 22: 39-47.
7Mokdad AH, Serdula MK, Dietz WH, et al. The spread of the obesity epidemic in the United States, 1991-1998. JAMA, 1999,282: 1519-1522.
8World Health Organization. Obesity: preventing and managing the global epidemic. Report on a WHO consultation on obesity ( WHO/NUT/NCD/98.1). Geneva: WHO, 1997. 41-72.
