SomanA.; CollinsJ.; DePetrisG.; DeckerG.; SilvaA.; MossA.; GreerW.; AshmanJ.; CallisterM.; BoradM. Isolated Supraclavicular Lymph Node Metastasis in Pancreatic Adenocarcinoma: A Report of Three Cases and Review of the Literature. JOP. Journal of the Pancreas, v. 11, n. 6, p. 604-609, 9 nov. 2010.