Velázquez-Acosta, Consuelo
Zarco-Márquez, Sugehily
Jiménez-Andrade, Mari Carmen
Volkow-Fernández, Patricia
Cornejo-Juárez, Patricia http://orcid.org/0000-0001-6331-8372
Article History
Received: 7 August 2017
Accepted: 25 December 2017
First Online: 7 January 2018
Compliance with ethical standards
: The study was approved by the Institutional Review Board (INCAN/Rev/10/17).
: The authors declare that they have no conflict of interest.
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