Ferreira, J. M. S., L. Ribeiro, R. Gama, F. Castro, A. F. de Almeida, and A. Condé. “Combined Laryngocele: Benign But Potentially Fatal Lesion of the Larynx”. Portuguese Journal of Otorhinolaryngology and Head and Neck Surgery, vol. 58, no. 1, July 2020, pp. 41-45, doi:10.34631/sporl.804.