Portas, M. 2012. Compresión traqueal secundaria a masa tiroidea retroesternal: opinión de expertos para el manejo de la vía aérea: Equal and opposite expert opinion. Airway obstruction caused by a retrosternal thyroid mass: management and prospective international expert opinion. T. M. Cook, P. J. Morgan and P. E. Hersch. Anaesthesia 2011; 66: 828–836. Revista Electrónica AnestesiaR. 4, 4 (abr. 2012), 1. DOI:https://doi.org/10.30445/rear.v4i4.366.