title: [Clinical course and function of external respiration in mitral heart defects under conditions of high altitude].
mesh_terms: D000328:Adult; D000531:Altitude; D006801:Humans; D008168:Lung / Q000503:physiopathology*; D008875:Middle Aged; D008946:Mitral Valve Stenosis / Q000503:physiopathology*; D012119:Respiration; D012129:Respiratory Function Tests
vernacular_title: Klinicheskaia kartina i funktsiia vneshnego dykhaniia pri mitral'nykh porokakh serdtsa v usloviiakh vysokogoriia