Valls, Alberto, and Carlos Sarroca. “Painful Pictures of the Epigastrium and Left Hypochondrium: It Treatment for Denervation or Pancreatic Resections”. Cirugía Del Uruguay, vol. 49, no. 2, Mar. 1979, pp. 89-93, https://replica-revista.scu.org.uy/index.php/cir_urug/article/view/3082.