GONZÁLEZ, R.; SANTACRUZ, J. .; PÉREZ GIRALA, E. .; MENA CANATA, C. . Anatomical variations of the frontal sinus drainage pathway according to the IFAC classification: frequency and interobserver agreement in a Paraguayan population. European Journal of Health Research, [S. l.], v. 12, p. 1–17, 2026. DOI: 10.32457/ejhr.v12.3614. Disponível em: https://revistas.uautonoma.cl/index.php/ejhr/article/view/3614. Acesso em: 2 apr. 2026.