Article History
Received: 23 May 2019
Accepted: 21 October 2019
First Online: 9 November 2019
Compliance with ethical standards
:
: Fernando Hernanz, Jaime Jimeno, Pedro Muñoz, and Sergio Diaz declare that they have no conflict of interest.
: Ethical approval from a local ethics committee was obtained for this study.
: All patients signed a written informed consent form.