2Sheila M, Ward MD, Steve N. Dexamethasone effects on retouring-induced changes in momentarily contractility and adrenergic race petro funetion[J ]. Am J Obscurer Gynecol, 1988,159(6) : 1461 - 1470.
3Follett DV,Loeb RG,Haskins SC. Effects of Epinephrine and ritodrine in dogs with acute hyperkalernia[ J ]. Angst Analg, 1990,70 (4) :400- 412.