Text and Data Mining valid from 2019-08-13
Received: 26 September 2018
Accepted: 26 July 2019
First Online: 13 August 2019
Ethics approval and consent to participate
: This study protocol and informed consent form were approved by the Ethics Committee of human researches of the Hospital Santa Casa de Misericórdia of Belo Horizonte under permit #073/2007. The informed consent form was signed by each participant prior enrollment, and was conducted based on the principles of the Helsinki and Istanbul Declarations.
: No applicable.
: The authors declare no conflicts of interest regarding the publication of this paper.