PFEIFER, M [Evaluation of mass x-ray survey in early recognition of malignant intrathoracic tumors]. [electronic resource] - Das Deutsche Gesundheitswesen Jul 1957 - 908-11 p. digital Publication Type: Journal Article ISSN: 0012-0219 Subjects--Topical Terms: HumansNeoplasmsRespiratory Tract NeoplasmsThoracic NeoplasmsThoraxX-Rays