Baldo, Marcelo Perim http://orcid.org/0000-0002-7673-3580
Gonçalves, Mauer A.
Capingana, Daniel P.
Magalhães, Pedro
da Silva, Amilcar B. Tomé
Mill, José Geraldo
Article History
Received: 10 March 2018
Accepted: 23 June 2018
First Online: 28 June 2018
Compliance with Ethical Standards
:
: This study was supported by the Science and Development Foundation of Agostinho Neto University, Angola, Africa.
: The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.
: The present study was approved by Institutional ethics committee.
: Written informed consent was obtained from each participant.