Berrendero, Santiago
Salido, Maria Paz
Ferreiroa, Alberto
Valverde, Arelhys
Pradíes, Guillermo
Article History
Received: 11 July 2017
Accepted: 22 August 2018
First Online: 30 August 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.The permission note is enclosed with the authors’ signatures.
: All procedures performed in the present study were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.The present study has the approval of the ethical committee of the “Hospital Clínico San Carlos” with the number (C.P. - C.I. 14/515-E_BS).
: Informed consent was obtained from all individual participants included in the present study. They were informed verbally and in writing of the advantages and disadvantages of participating in the study.