BALB/ C mice were immunized with U_ ( 14) ( mouse uterine cervical carcin-oma NO.14) cells as antigens and their spleen cells were hybridized with NS-1 mouse myeloma cells using PEG ( polyethylene glycol) as the fusing agent. 作者以U(14)(小鼠宫颈癌第14号)细胞为抗原,免疫BALB/C小鼠,取其脾细胞与NS&1小鼠骨髓瘤细胞在PEG(聚乙二醇)作用下进行细胞融合。