Espinel, Jesus, Eugenia Pinedo, Gabriela Rascarachi, and Vanesa Ojeda. “Endoscopic ‘String Sign’”. JOP. Journal of the Pancreas 15, no. 2 (March 10, 2014): 206–207. Accessed June 8, 2025. https://www.sharepress.it/index.php/jop/article/view/1936.