Funding for this research was provided by:
Conselho Nacional de Desenvolvimento Científico e Tecnológico (422041/2018-1)
Text and Data Mining valid from 2020-04-25
Received: 19 November 2019
Accepted: 17 April 2020
First Online: 25 April 2020
Ethics approval and consent to participate
: The research was approved by Comitê de Ética em Pesquisa (Committee of Ethics in Research) of Universidade Estadual da Paraíba (Protocol CEP-UEPB: 43589815.0.0000.5187).
: Not applicable.
: The authors declare that they have no competing interests.