Media type: E-Article Title: Coronary Sinus Reducer for the Treatment of Chronic Refractory Angina: Will This Challenge the Treatment of Coronary Chronic Total Occlusions? Contributor: Vescovo, Giovanni Maria; Zivelonghi, Carlo; Bellamoli, Michele; Vermeersch, Paul; Verheye, Stefan; Agostoni, Pierfrancesco Published: Springer Science and Business Media LLC, 2021 Published in: Current Cardiology Reports, 23 (2021) 4 Language: English DOI: 10.1007/s11886-021-01463-w ISSN: 1523-3782; 1534-3170 Keywords: Cardiology and Cardiovascular Medicine Origination: Footnote: