CENTRAL, PubMed. Sample PubMed Central Citations. Boletim Técnico do PPEC, Campinas, SP, v. 8, p. e023006, 2023. Disponível em: https://econtents.sbu.unicamp.br/boletins/index.php/ppec/article/view/9475. Acesso em: 23 out. 2025.