3Goldman L ,Caldera D L ,Nussbaum S R ,et al. Multifactorial index of cardiac risk in noncardiac surgicai procedures [J ]. New England Journal of Medicine, 1977,297:845-850.
4Aldemir M ,Ozen S,Kara I H,et al. Predisposing factors for deliriuminthe surgical intensive care unit[J]. Crit Care, 2001 (5) : 265-270.