Funding for this research was provided by:
Instituto Mexicano del Seguro Social (FIS/IMSS/PROT/PRIO/16/061)
Received: 7 September 2018
Accepted: 22 January 2019
First Online: 31 January 2019
Ethics approval and consent to participate
: The authors declare to have complied with ethical standards. The data presented here are part of a research project approved by our institutional research and ethics committees (Instituto Mexicano del Seguro Social, Project # R-2013-785-071).Written informed consent was obtained from the patient for participating in this study.
: The patient gave his approval by signing an informed consent.
: The authors declare that they have no competing interests.
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