Funding for this research was provided by:
Hospital Samaritano Society (25000.180.664/2011-35)
Received: 21 March 2019
Accepted: 17 July 2019
First Online: 29 August 2019
Ethics approval and consent to participate
: The study protocol was approved by the ethics committee of the Hospital das Clínicas (SDC: 3485/10/074), University of São Paulo, Brazil, and each subject provided informed written consent before participation.
: Not applicable.
: The authors declare that they have no competing interests.