Funding for this research was provided by:
Fundação de Amparo à Pesquisa do Estado de São Paulo (2016/19690-5)
Text and Data Mining valid from 2019-07-18
Received: 19 April 2019
Accepted: 19 June 2019
First Online: 18 July 2019
Compliance with ethical standards
: All authors declare no conflict of interest.
: This research received the approval of the Ethics Committee for Research Projects Analysis (CAPPesq) of the Clinical Hospital, School of Medicine, University of Sao Paulo, Brazil, #1.645.384/2016, and was performed according to the Declaration of Helsinki. All data were analyzed anonymously.
: The participants involved in this research signed an informed consent statement.