S. . Falkmer, J. . Rahier, O. . Søvik, and J. . Vidnes, “Significance of Argyrophil Parenchymal Cells in the Pancreatic Islets in Persistent Neonatal Hypoglycemia with Hyperinsulinism of Familial Type”, ujms, vol. 86, no. 2, pp. 111–117, June 1981.