Johansson , H. ., Grimelius , L. ., Heitz , U. ., Lundqvist , G. ., Peterson , P. ., Portela-Gomes , G. ., & Wilander , E. . (1979). The Effects of Endogenous Hypergastrinemia and Hypogastrinemia on the Exocrine and Endocrine Rat Pancreas. Upsala Journal of Medical Sciences, 84(3), 247–254. https://doi.org/10.3109/03009737909179161