The value of periodic mass chest roentgenographic surveys in the detection of primary bronchial carcinoma in Norway.
D002283:Carcinoma, Bronchogenic; D006801:Humans; D008175:Lung Neoplasms / Q000175:diagnosis*; D009664:Norway; D013902:Radiography, Thoracic
LUNG NEOPLASMS/diagnosis; THORAX/radiography