Purpose:To study the efficiency and investigate the underlyingmechamism of muiple low dose radioimmunotherapy(RIT) for thetreatment of solid tumor micro-metastases in mice models.

• 目的: 针对实体瘤动物模型的微小转移灶，观察分次小剂量RIT对肿瘤转移灶的治疗效果，初步探讨其机理。