Funding for this research was provided by:
Consejo Nacional de Ciencia y Tecnología (261203/373750)
Text and Data Mining valid from 2019-01-22
Received: 5 December 2016
Revised: 11 July 2018
Accepted: 28 July 2018
First Online: 22 January 2019
Compliance with Ethical Standards
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.