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None of the authors has any conflict to declare related to the present study.
Ethics approvalAll procedures used in this study adhere to the tenets of the Declaration of Helsinki. Approval was granted by the Ethics Committee of São Paulo State University (UNESP), Botucatu, São Paulo, Brazil (CAAE12287319.0.0000.5411).
Informed consentWritten informed consent was obtained from all patients.
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