title: Morphological variation in oat-cell carcinoma of the bronchus.
mesh_terms: D001984:Bronchial Neoplasms / Q000648:ultrastructure*; D018288:Carcinoma, Small Cell / Q000648:ultrastructure*; D002294:Carcinoma, Squamous Cell / Q000648:ultrastructure; D006801:Humans; D008175:Lung Neoplasms / Q000648:ultrastructure*