1. Pre-operative autonomic function abnormalities in patients with diabetes mellitus and patients with hypertension;Charlson;J Am Coll Surg,1994
2. Surveillance for postoperative myocardial infarction after noncardiac operations;Charlson;Surg Gynecol Obstet,1988
3. The timing of prophylactic administration of antibiotics and the risk of surgical wound infection;Classen;N Engl J Med,1992
4. ACC/AHA guidelines for perioperative cardiovascular evaluation for noncardiac surgery;Eagle;Circulation,1996
5. General internal medicine;Fitzgerald,1994