The frequency of differntiation in oat-cell carcinoma of the lung.
D018554:Avena; D002277:Carcinoma / Q000473:pathology*; D018288:Carcinoma, Small Cell; D006801:Humans; D008175:Lung Neoplasms / Q000473:pathology*
CARCINOMA/pathology; LUNG NEOPLASMS/pathology