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Contributors Conception and design: GFAR, COCL, RLP and RR. Data collection: GFAR and RLP. Manuscript draft: GFAR, COCL, RLP. Content revisor: RR. Final approval: all authors.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests All authors are current members of the EBM Academic League, Unifesp.
Provenance and peer review Not commissioned; internally peer reviewed.