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. 2015 Dec 3;3(12):e12638. doi: 10.14814/phy2.12638

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© 2015 The Authors. Physiological Reports published by Wiley Periodicals, Inc. on behalf of the American Physiological Society and The Physiological Society.

This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Theoretical processing of proglucagon in the pancreas and intestine. GRPP, glicentin‐related pancreatic polypeptide; IP‐1, intervening peptide; GLP‐1, glucagon‐like peptide 1; IP‐2, intervening peptide 2; GLP‐2, glucagon‐like peptide 2; modified from Holst (Holst 1997). Peptides labeled in italics have been presumed to be present but have not been identified in mammals.