1. Nationwide Inpatient Sample,2001
2. Direct and indirect costs of diabetes in the United States in 1992,1993
3. Trends in lower extremity amputation in the Veterans Affairs Hospitals, 1989-1998;Mayfield;J Rehabil Res Dev,2000
4. Diabetic foot ulcers;Grunfield;Adv Inter Med,1992
5. Amputation of the toes for vascular disease;Little;Lancet,1976