Received: 6 July 2018
Accepted: 5 October 2018
First Online: 20 October 2018
: All authors read and approved this manuscript.
: The study was approved by the internal Review Board of the Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán with the reference number IRE-274-10/ 11-1. Written informed consent was obtained from all of the patients involved in the study.
: All of the patients provided their consent to have their charts reviewed and data presented in scientific forums or published.
: The authors declare that they have no financial interests, which could create a potential conflict of interest with regard to the work.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.