Value of computed tomography for evaluating the subglottis in laryngeal and hypopharyngeal squamous cell carcinoma - Souza, Ricardo Pires de; Barros, Nestor de; Paes Junior, Ademar José de Oliveira; Tornin, Olger de Souza; Rapoport, Abrão; Cerri, Giovanni Guido (São Paulo Medical Journal, 2007)