Velayos, Benito http://orcid.org/0000-0002-2489-6003
Del Olmo, L.
Merino, L.
Valsero, M.
González, J. M.
Article History
Accepted: 1 March 2018
First Online: 12 March 2018
Compliance with ethical standards
:
: The study meets under the present frame of the University Hospital of Valladolid Research Institutional Review Board.
: All study participants provided informed written consent prior to study enrollment.
: The authors declare that they have no conflicts of interest.