Mass miniature radiography of the Finnish State Railways. A report on seven years' experience published on the occasion of the centenary of the Finnish State Railways.
D006801:Humans; D008168:Lung; D011642:Publications; D011859:Radiography; D011890:Railroads; D014376:Tuberculosis; D014397:Tuberculosis, Pulmonary / Q000000981:diagnostic imaging*
RAILROADS; TUBERCULOSIS, PULMONARY/radiography