Del Brutto, Oscar H. http://orcid.org/0000-0003-1917-8805
Mera, Robertino M.
Funding for this research was provided by:
Universidad Espiritu Santo - Ecuador
Article History
Received: 6 December 2017
Accepted: 16 February 2018
First Online: 23 February 2018
Compliance with Ethical Standards
:
: This study was partially supported by Universidad Espíritu Santo-Ecuador, Guayaquil, Ecuador.
: All authors report no conflicts of interest to disclose.
: The study was approved by the Institutional Review Board of Hospital-Clínica Kennedy, Guayaquil, Ecuador (FWA 00006867).
: All subjects signed an informed consent form before enrollment.