PT - Journal Article TI - Treatment of secondary mitral regurgitation in patients with heart failure: when left ventricular ejection fraction may become not crucial AU - Metra, Marco AU - Adamo, Marianna DP - 2021 TA - EuroIntervention PG - e271-e273 VI - 17 IP - 4 AID - 10.4244/EIJV17I4A48 [doi] 4100 - https://doi.org/10.4244/EIJV17I4A48