Received: 5 June 2018
Accepted: 17 July 2019
First Online: 22 July 2019
Ethics approval and consent to participate
: Institutional Review Board approval was obtained from The Bioethics Committee for Research in Health Science from the Hospital Universitario, Universidad Autónoma de Nuevo León, approved the study protocol, which was performed in accordance with the declaration of Helsinki and good clinical practices (Reference Number, GEN15–002). Written informed consent was obtained from each patient involved in this study.
: Not applicable.
: The authors declare that we have no competing interests.