Funding for this research was provided by:
This study was Supported by and Funded by a National Grant coming from the Spanish Healthcare System (P1070682.)
Received: 1 May 2019
Accepted: 1 August 2019
First Online: 9 August 2019
Compliance with ethical standards
: Cristina Vicente Martin, Luis R. Rabago Torre, Luis A. Castillo Herrera, Marisa Arias Rivero, Miguel Perez Ferrer, David Collado Pacheco, Maria Dolores Martin Rios, Raquel Barba Martin, Javier Ramiro Martin, Jaime Vazquez‑Echarri, and Norberto Herrera Merino declare that they have no conflicts of interest or financial ties to disclose.
: The clinical research was approved by the Research and Ethics Committee of the Hospital Severo Ochoa, Leganes.
: Written informed consents were obtained from the patients for using their data in scientific studies while protecting their anonymity before the procedure.