Received: 9 August 2019
Accepted: 24 October 2019
First Online: 21 November 2019
Ethics approval and consent to participate
: This study was approved by the Research Ethics Committee of the São Leopoldo Mandic Research Institute, Campinas/SP (protocol No. 59866216.6.0000.5374).
: Not applicable.
: Vilton Zimmermann de Souza, Rafael Manfro, Júlio César Joly, Carlos Nelson Elias, Daiane Cristina Peruzzo, Marcelo Henrique Napimoga, and Elizabeth Ferreira Martinez state that they have no conflicts of interest.