Methods RBC-C3b rosette test, RBC-IC rosette test and direct tumor erythrocyte rosette test by Guo-feng s method were used.

• 方法采用郭峰法红细胞C_(3b)受体花环、免疫复合物花环实验和直向肿瘤红细胞花环试验测定红细胞免疫粘附功能。