Text and Data Mining valid from 2020-01-21
Received: 31 January 2019
Accepted: 23 December 2019
First Online: 21 January 2020
Ethics approval and consent to participate
: The protocol was approved by the Research Ethics Committee of the main research center (Federal University of Paraná) and registered with the National Research Ethics Commission (Comissão Nacional de Ética em Pesquisa – CONEP) under number 15982413.4.1001.0096.
: All patients were informed and consented to the publication of their data, ensuring confidentiality.
: The authors declare that they have no competing interests.