Endoscopic hydro pneumatic dilatation as a therapeutic procedure in subglottic stenosis Servicio Desconcentrado Hospital Universitario de Pediatría Dr. Agustín Zubillaga . Bol méd postgrado. 2022;38(1):15-20. Accessed August 8, 2026. https://revistas.uclave.org/index.php/bmp/article/view/3846