KHAN, A. R.; SIDDIQUI, F. Regional prevalence of different types of sinusitis at a tertiary care centre in Northern India. International Journal of Otorhinolaryngology and Head and Neck Surgery, [S. l.], v. 6, n. 5, p. 969–973, 2020. DOI: 10.18203/issn.2454-5929.ijohns20201697. Disponível em: https://www.ijorl.com/index.php/ijorl/article/view/2200. Acesso em: 10 oct. 2025.