3Groeger J S, Guntupalli K K, Strosberg M, et al. Descriptive analysis of critical care units in the United States: patient characteristics and intensive care unit utilization[J]. Crit Care Med, 1993,21 (2) : 279 - 291.
6S. Nouira,E. Roupie,S. El Atrouss,I. Durand-Zaleski,C. Brun-Buisson,F. Lemaire,F. Abroug. Intensive care use in a developing country: a comparison between a Tunisian and a French unit[J] 1998,Intensive Care Medicine(11):1144～1151
