Plasma CEA levels in small cell lung cancer. Correlation with stage, distribution of metastases, and survival.


Plasma CEA levels were determined in 61 patients with small cell lung cancer entering chemotherapy protocols between 1976 and 1980. Five quantitative categories were determined: less than 2.5 ng/ml (the standard normal for Hansen assay); 2.6-5.0 ng/ml (the extended normal for smokers); 5.1-20.0 ml; (the intermediate elevation and the transition for the… (More)


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