Van Noorden S, Patent G J
Cell Tissue Res. 1978 Apr 28;188(3):521-5. doi: 10.1007/BF00219789.
Immunocytochemical staining has revealed that the pancreatic islets of various teleost fishes contain a pancreatic polypeptide (PP1-like substance which cross-reacts with antibodies to mammalian and avian PP. The PP cells were frequently found at the periphery of the islets, as in mammals, and were of irregular shape.