“Endoscopy Findings During Drug-Induced Sleep-in Patients With Obstructive Sleep Apnea-Hypopnea Syndrome at Hospital Universitario San Ignacio”. Universitas Medica 64, no. 1 (May 5, 2023). Accessed October 6, 2025. https://revistas.javeriana.edu.co/index.php/vnimedica/article/view/36838.