1. Vital and Health Statistics, U.S. Department of Health and Human Services. Series 13, no. 88, Washington, D.C., U.S. Government Printing Office, 1983; 14–17.
2. Multifactorial index of cardiac risk in noncardiac surgical procedures;Goldman;N Engl J Med,1977
3. Cardiac prognosis in noncardiac geriatric surgery;Gerson;Ann Intern Med,1985
4. Cardiac risk stratification prior to geriatric abdominal or noncardiac thoracic surgery;Gerson;Circulation,1988
5. Some mathematical properties of weight-for-height indices used as measures of adiposity;Benn;Br J Prev Soc Med,1971