Calvo, Emilio
Torres, Maria Dolores
Morcillo, Diana
Leal, Victorino
Article History
Received: 17 June 2018
First Online: 17 December 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The Institutional Review Board of Hospital Universitario Fundación Jiménez Díaz (Universidad Autónoma de Madrid) approved the study (no. EO 05/2009).
: Informed consent was obtained from all individual participants included in the study.