Villar, Feliciano
Celdrán, Montserrat
Serrat, Rodrigo
Fabà, Josep
Genover, Mònica
Martínez, Teresa
Article History
First Online: 27 June 2018
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the ethical committees of the institutions participating in the study and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.