title: Left ventricular outflow tract obstruction in hypertrophic cardiomyopathy: do we need to stand to be counted.
authors.forename: Lynne
authors.initials: L
authors.lastname: Williams
authors.forename: Christiane
authors.initials: C
authors.lastname: Gruner
authors.forename: Harry
authors.initials: H
authors.lastname: Rakowski
mesh_terms: D000203:Activities of Daily Living; D002312:Cardiomyopathy, Hypertrophic / Q000000981:diagnostic imaging* / Q000503:physiopathology*; D015150:Echocardiography, Doppler / Q000379:methods*; D005080:Exercise Test; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011187:Posture; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014636:Valsalva Maneuver