Zille, Alessandra Isabel http://orcid.org/0000-0003-1353-854X
Werneck, Guilherme Loureiro
Luiz, Ronir Raggio
Conde, Marcus Barreto
Funding for this research was provided by:
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Article History
Received: 25 July 2018
Accepted: 26 April 2019
First Online: 8 May 2019
Ethics approval and consent to participate
: The study was submitted to the Research Ethics Committee of the Federal University of Rio de Janeiro - Clementino Fraga Filho University Hospital (May 2013), which exempted the need for ethical approval because it is ecological research based on public secondary data.
: Not applicable.
: The authors declare that they have no competing interests.
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