KHOSA, JA; VAN AS, AB (Sebastian). Unilateral congenital nasal pyriform aperture stenosis and unilateral choanal atresia – a novel finding: A case report. South African Medical Journal, South Africa, v. 112, n. 11b, p. 931–932, 2022. DOI: 10.7196/SAMJ.2022.v112i11b.16839. Disponível em: https://samajournals.co.za/index.php/samj/article/view/478. Acesso em: 18 apr. 2026.