Comment on «2011 Accf/Aha Guideline for the Diagn. and Treatm. of Hypertrophic Cardiomyopathy: A Report of the Accf/Aha Task Force on Pract. Guidelines Developed in Collaboration with the Aats, Amer. Soc. of Echocardiography, Amer. Soc. of Nucl. Cardiol., Heart Failure Soc. of Amer., Heart Rythm Soc., Soc. for Cardiovasc. Angiography and Interventions and Soc. of Thorac. Surgs.»