PRABUDOSS, G. S.; SHAH, N. P. Prospective comparison of conscious nasal versus oral video upper GI endoscopy in adults. International Surgery Journal, [S. l.], v. 6, n. 5, p. 1505–1508, 2019. DOI: 10.18203/2349-2902.isj20191872. Disponível em: https://www.ijsurgery.com/index.php/isj/article/view/4378. Acesso em: 20 feb. 2026.