title: [Technics and clinical significance of trans-sternal pneumomediastinography, with special reference to the roentgenologic observation of the thymus in myasthenic patients].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000783:Aneurysm / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D008297:Male; D008722:Methods; D008875:Middle Aged; D009157:Myasthenia Gravis / Q000000981:diagnostic imaging*; D011012:Pneumomediastinum, Diagnostic; D011859:Radiography; D012859:Sjogren's Syndrome / Q000000981:diagnostic imaging; D013950:Thymus Gland / Q000000981:diagnostic imaging*; D013953:Thymus Neoplasms / Q000000981:diagnostic imaging