[The state of the external respiration in mitral stenosis patients and its study using the Karin and Samardzhiev spirograph].
D006801:Humans; D008722:Methods; D008946:Mitral Valve Stenosis / Q000503:physiopathology*; D012119:Respiration; D013147:Spirometry / Q000295:instrumentation
Sostoianie vneshnego dykhaniia u bol'nykh mitral'nym stenozom i ego issledovanie s pomoshch'iu spirografa Karina i Samardzhieva.