Funding for this research was provided by:
Ministerio de Ciencia, Innovación y Universidades (CSO2017-82691-R)
Received: 16 June 2020
Accepted: 9 September 2020
First Online: 15 September 2020
Ethics approval and consent to participate
: The study was approved by the Ethics Committee of the University of Navarre (reference number 071/2014). All procedures performed in this paper were in accordance with the ethical standards laid down in the 1964 Declaration of Helsinki and its later amendments. All participants included in this study gave their written informed consent prior to their inclusion in the study.
: Written informed consent was obtained from all patients included in the study.
: The authors declare that they have no competing interests.