Funding for this research was provided by:
Fundação de Amparo à Pesquisa do Estado de São Paulo (2017/26563-2)
Text and Data Mining valid from 2020-01-06
Received: 1 August 2019
Accepted: 12 December 2019
First Online: 6 January 2020
Ethics approval and consent to participate
: The study protocol was approved by the Ethics Committee for Research of the Universidade Federal de São Paulo (UNIFESP) - (CEP-0620/09) and is in accordance with the guidelines laid down in the Declaration of Helsinki adopted in 1964.
: Not applicable.
: The authors declare that they have no competing interests.