Cabral, Francisco, 		Ramos, Paulo, 		Monteiro, Cecília, 		Casaca, Rui, AND 		Abecacis, Nuno.
" UPPER THORACIC FIELD LYMPHADENECTOMY FOR OESOPHAGEAL CARCINOMA" <em>Revista Portuguesa de Cirurgia</em> [Online],  Number 47 (2 July 2020)