title: Transventricular relief of idiopathic hypertrophic subaortic stenoses.
mesh_terms: D000293:Adolescent; D000328:Adult; D006328:Cardiac Catheterization; D002312:Cardiomyopathy, Hypertrophic / Q000503:physiopathology / Q000601:surgery*; D002648:Child; D005260:Female; D006352:Heart Ventricles; D006801:Humans; D008297:Male; D008722:Methods; D008875:Middle Aged