Text and Data Mining valid from 2019-01-14
Received: 23 May 2018
Accepted: 11 December 2018
First Online: 14 January 2019
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. The study was approved by the Ethical Committee of the Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre (CAAE: 62424416.0.0000.5336) and by the Ethical Council of the Hospital São Vicente de Paulo-CACON, Cruz Alta, RS (2017-001).
: Informed consent was obtained from all individual participants included in the study.