1Pan XR, Li GW, Hu YH, et al. Effects of diet and exercise in pre-venting NIDDM in people with im- paired glucose tolerance. The Daqing IGT and dia- betes study[J]. Diabetes Care, 1997, 20~ 537-544.
2Scheen A J, Letiexhe MR, Ernest P. Prevention ot type 2 diabetes: lifestyle changes or pharmacological interventions?[J]. Rev Med Liege, 2003, 58: 206- 210.
3Melander A. Review of previous impaired glucose tol- erance intervention studies [J]. Diabetes Medicine, 1996, 13: S20-S22.