Methods:Fourty New zealand rabbits were devided into 5 groups. 10% hydrogen chloride,10% sodium hydroxide,50% and 75% acetic acid and anhydrous ethonal were injected into the hepatic parenchyma respectively.

• 方法 新西兰兔 40只 ,分为 5组 ,分别于肝实质内注射 10%25盐酸、 10%25氢氧化钠、 5 0%25和 75%25醋酸以及无水酒精。