title: Pneumothorax as a complication of radiation therapy for primary lung cancer.
mesh_terms: D002283:Carcinoma, Bronchogenic / Q000532:radiotherapy*; D003037:Cobalt Radioisotopes / Q000627:therapeutic use*; D006801:Humans; D008175:Lung Neoplasms / Q000532:radiotherapy*; D008297:Male; D008875:Middle Aged; D011030:Pneumothorax / Q000209:etiology*; D011867:Radioisotope Teletherapy / Q000009:adverse effects*
chemical_list: D003037:Cobalt Radioisotopes