%0 Journal Article %T The Importance of the Effective Valsalva Maneuver during Echocardiography in Hypertrophic Cardiomyopathy. %A Hotta VT %A Romano MMD %A Barberato SH %A Vieira MLC %A Fernandes F %A Simões MV %J Arq Bras Cardiol %V 121 %N 7 %D 2024 %M 39016391 %F 2.667 %R 10.36660/abc.20230871