1. Anatomical dissection was performed with an operating microscope bilaterally on 5 adult cadaver heads, fixed in formalin, to expose the point of iSLN penetration through the thyrohyoid membrane.
采用双侧手术显微镜对5具成人尸体头颅进行解剖，固定于福尔马林内，暴露岛蛋白穿透甲状舌骨膜的点。