METHODS Serum CyFRA 21 1 and CEA were determined using immunoradiometric assay (IRMA) in 30 NSCLC patients and 20 healthy adults.

• 方法采用免疫放射分析方法对30例经临床和病理证实的NSCLC患者和20例正常人进行血清CyFRA21?1和CEA联合测定。