3Houry DE.The value of the out of hospital experience for emergency medicine residents[ J ]. Annals of Emergency Medicine, 2000, 36:391 － 393.
4Hockberger RS, Binder LS, Graber MA, et al. The medel of the clinical practice of emergency medicine [ J ] . Annals of Emergency Medicine,2001,37:745 － 770.
5Dorman T, Angood PB, Angus DC, et al. Guidelines for critical medicine training and continuing medical education [ J ]. Crit Care Med,2004,32(l):263 － 272.
