Text and Data Mining valid from 2019-10-30
Received: 15 July 2019
Accepted: 23 October 2019
First Online: 30 October 2019
Ethics approval and consent to participate
: All procedures are in accordance with the provisions of the Regulations of the General Health Law in the Field of Health Research in Mexico: Title II, Chapter II, from research communities.
: Not applicable.
: The authors declare that they have no competing interests.