Effect of Satragaloside Ⅳ on the Increase of Microvascular Permeability Induced by Histamine in Pial Microvessels of Rat Experimental study on pseudoallergic reaction of Qingkailing injection Material for evaluation of notoginseng total saponin preparation induced pseudoanaphylactoid reactions Evaluation and study of pseudo-allergic reactions of three kinds of traditional Chinese medicine injections and its mechanisms