1) Appleton CP, Hatle LK:The natural history of left ventricular filling abnormalities:Assessment by two-dimensional and Doppler echocardiography. Echocardiography 9:437-457, 1992
2) van der Meer P, Gaggin HK, Dec GW:ACC/AHA Versus ESC Guidelines on Heart Failure:JACC Guideline Comparison. J Am Coll Cardiol 73:2756-2768, 2019
3) Doherty JU, Kort S, Mehran R, et al:ACC/AATS/AHA/ASE/ASNC/HRS/SCAI/SCCT/SCMR/STS 2019 Appropriate Use Criteria for Multimodality Imaging in the Assessment of Cardiac Structure and Function in Nonvalvular Heart Disease. J Am Coll Cardiol 73:488-516, 2019
4) Nishimura RA, Otto CM, Bonow RO, et al:2014 AHA/ACC guideline for the management of patients with valvular heart disease. J Am Coll Cardiol 63:e57-e185, 2014
5) Baumgartner H, Falk V, Bax JJ, et al:2017 ESC/EACTS Guidelines for the management of valvular heart disease. Eur Heart J 38:2739-2791, 2017
6) Lancellotti P, Pellikka PA, Budts W, et al:The Clinical Use of Stress Echocardiography in Non-Ischaemic Heart Disease:Recommendations from the European Association of Cardiovascular Imaging and the American Society of Echocardiography. J Am Soc Echocardiogr 30:101-138, 2017