Funding for this research was provided by:
Fundação de Amparo à Pesquisa do Estado de São Paulo (2014/00001-0)
Text and Data Mining valid from 2018-02-15
Received: 11 October 2017
Accepted: 11 January 2018
First Online: 15 February 2018
Compliance with ethical standards
: Informed consent was obtained from all participants, and the study was approved by the Research Ethics Committee of the Botucatu Medical School, UNESP.