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Authors
Horta-Baas, Gabriel http://orcid.org/0000-0001-5710-2137
Romero-Figueroa, Maria del Socorro http://orcid.org/0000-0003-2390-2202
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Article History
Received: 4 July 2019
Accepted: 10 September 2019
First Online: 23 October 2019
Ethics approval and consent to participate
: This study was approved by the local research ethic committee of the Instituto Mexicano del Seguro Social. All participants signed an informed consent prior to their inclusion.
: Not applicable.
: The authors declare that they have no competing interests.
