METHODS:The exogenous hyaluronic acid at different contents and doses was used on the wounds which were made by excisional operation of intermediate split thickness skin graft on backs of piglets.

• 方法:在小型猪背部去中厚皮片后的创面上应用不同含量、剂型的外源性透明质酸,于术后第3,7,14,21及28天观察创面的愈合情况及其组织学变化。