The Effects of Pulsatillae Decoction and Its Single Components (Chinese Pulsatilla Root, Golden Thread, Amur Cork-tree, Ash Barkon) Liquid at Different Doses on Contractility of Isolated Rat Ileum

• 白头翁汤及其组分（白头翁、黄连、黄柏、秦皮）的水煎液对大鼠离体回肠收缩的影响