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Financial support and sponsorship
None.

Conflicts of interest
Benito-González T received an unrestricted research grant from Abbot Vascular not related to this report;
Estévez-Loureiro R and Garrote-Coloma C are proctors for MitraClip®.

Ethical approval and consent to participate
This research has been conducted in accordance with the Declaration of Helsinki and approved by
University Hospital of Leon ethics committee. All participants gave informed consent.

Consent for publication
Not applicable.

Copyright
© The Author(s) 2020.

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