2Pfeifer R, Tarkin I S, Rocos B, et al. Patterns of mortal- ity and causes of death in polytrauma patients--has any- thing changed? [ J]. Injury, 2009,40(9) :907-911.
3Spahn D R, Bouillon B, Cemy V, et al. Management of bleeding and coagulopathy following major trauma: an up- dated European guideline [ J ]. Critical Care, 2013, 17 (2) :R76.
4Hirshberg A, Wall M J Jr, Allen M K, et al. Causes and patterns of missed injuries in trauma [J]. Am J Surg, 1994,168 (4) : 299-303.