5Bloch H, Silverman R, Mancherje N, et al. Intravenous magnesium sulfate as an adjunct in the treatment of acute asthma Chest, 1995, 107(6) :1576-1551.
6Skorodin MS, Freebeck PC, Yetter B, et al. Magnesium sulfate potentiates several cardiovascular and metabolic actionsof terbutaline. Chest, 1994,105 (3) :701-705.