Received: 18 January 2019
Accepted: 15 May 2019
First Online: 24 May 2019
Ethics approval and consent to participate
: The study was approved by Virgen de la Arrixaca Clinical University Hospital Ethical Committee for Clinical Research (License Number: Registry 02/17), and since there was no interference with patients’ management, signed informed consent was waived.
: Not applicable.
: The authors declare that they have no competing interests.