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Article History

Received: 18 December 2019

Accepted: 22 July 2020

First Online: 18 September 2020

Ethics approval and consent to participate

: The study was approved by the institutional ethics committee of the Hospital Clinic in Barcelona (reg. no. 2012/7292). Enrolled patients gave their written consent to participate in the study. The study adhered to the Declarations of Helsinki.

: Dr. G. Fernández-Esparrach reports non-financial support from Medtronic and non-financial support from Norgine Iberia, during the conduct of the study; personal fees and non-financial support from Norgine Iberia; personal fees and non-financial support from Olympus Spain; and personal fees from CDx Diagnostics, outside the submitted work; Dr. F. Balaguer reports personal fees from Sysmex and personal fees from Norgine, outside the submitted work; Dr. A. Cárdenas is a Boston Scientific consultant; Dr. M. Pellisé has been a consultant for Norgine, Iberia until 2017; received fees for conferences from Norgine, Olympus and CasenRecordati; and receives an editorial fee from Thieme; Dr. A. Castells reports personal fees from Amadix, Jansenn and Goodgut, and grants from Protein Alternatives and Universal Diagnostics, outside the submitted work; the other authors declare that they have no competing interests.