First Online: 14 June 2020
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 research committee (Comitê de Ética do Centro de Ciências da Saúde da Universidade Federal de Pernambuco, CAAE 58349916.1.0000.5208) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual patients included in the study.