Pérez, J. (2022). Endoscopic hydro pneumatic dilatation as a therapeutic procedure in subglottic stenosis Servicio Desconcentrado Hospital Universitario de Pediatría Dr. Agustín Zubillaga . Boletin Médico de Postgrado, 38(1), 15-20. https://revistas.uclave.org/index.php/bmp/article/view/3846