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CAP, DAV, RR and LFLR are joint senior authors.
Contributors Conception and design: CAP, CMT, DAV, LFLR. Data collection: AMdQ, ATF, ADZ, FdAR. Manuscript draft: CAP, FdAR, AMdQ, ADZ. Content revisor: CAP, DAV, CMT, RR, LFLR. Final approval: all authors.
Funding This study was supported by the Brazilian Ministry of Health through the Programa de Apoio ao Desenvolvimento Institucional do Sistema Único de Saúde (PROADI-SUS Program), led by Hospital Sírio- Libanês, São Paulo, Brazil.
Competing interests None declared.
Provenance and peer review Not commissioned; internally peer reviewed.