Funding for this research was provided by:
Fundación Cajamurcia (FFIS/CM10/031)
Received: 15 May 2018
Accepted: 30 June 2019
First Online: 17 July 2019
Ethics approval and consent to participate
: This study was approved by the research ethics committee of the University of Murcia under registration number 1018/2015, after which, the consent of the patients was obtained verbally, after a verbal report of the procedures to be performed.
: Not applicable.
: The authors declare that they have no competing interests.