Funding for this research was provided by:
Consejo Nacional de Ciencia y Tecnología (223019)
Received: 10 August 2017
Accepted: 15 February 2018
First Online: 21 February 2018
Ethics approval and consent to participate
: All participants signed an informed consent form, and the study protocol was approved by the local research and ethical committees (Dirección de educación e Investigación de la Secretaria de Salud de la CDMX/212–010–14-15 and Comité de ética en investigación del Instituto Nacional de Medicina Genómica 2016/CEI-30). This study was conducted in accordance with the Declaration of Helsinki.
: Written informed consent about the patients for publication was obtained.
: The authors declare that they have no competing interests.
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