MATTER, F. Front Matter Vol. 57 No. 4 December 2021. Folia Medica Indonesiana, [S. l.], v. 57, n. 4, 2021. DOI: 10.20473/fmi.v57i4.32025. Disponível em: https://e-journal.unair.ac.id/FMI/article/view/32025. Acesso em: 9 sep. 2024.