4Stratmann D.Choice of anesthesia procedure in cesarean section(g eneral versusregional).Reg Anaesth,1986,9(4):94-99
5Rout CC.A reevaluation of the role of crystalloid preload in the p revention ofhypotension associated with spinal anesthesia for elective cesareansection.Anesthesiology,1993,72(2):262-269