Article History
Received: 14 September 2018
Accepted: 25 July 2019
First Online: 8 August 2019
Compliance with ethical standards
:
: The authors declare that they have no conflicts of interest.
: Ethical approval for the study was obtained from the Bioethics Committee of the Biomedical Research Institute of the University of Carabobo (protocol number CBIIB-UC/2016-3). The patients enrolled in the study were all adult and signed written informed consent.