1Axhron C,Petesn N,Wray N,et al.The incidence of perioperative myocardial infarction in men.undergoing noncadiac surgery[J].Ann Intern Med,1993,118(4):504.
2Zatn HR,Sking JA.preoperative prevalence of deep rein thrombosis in patients with femoral neck fracture and delayed operation[J].Injury,1999,30(9):605.
