The anfmals were divided into three groups based on the center of injection site,located individually in the dorsal part of CG ( grup CGD ) , the medial part of CG (group CGM)and the lateral part of CG ( group CGL ) .

• 按照泳注中心位置,将实验材料分作背侧区(CGD)、内侧区(CGM)和外侧区(CGL)三组。