title: [The significance of mitral valve calcification for commissurotomy].
mesh_terms: D000293:Adolescent; D000328:Adult; D002114:Calcinosis / Q000150:complications; D006801:Humans; D008875:Middle Aged; D008943:Mitral Valve / Q000473:pathology*; D008946:Mitral Valve Stenosis / Q000150:complications / Q000401:mortality / Q000473:pathology / Q000601:surgery*; D011183:Postoperative Complications
vernacular_title: Znachenie petrifikatsii mitral'nogo klapana dlia komissurotomii.