title: The gastrins: structure and heterogeneity.
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D005755:Gastrins / Q000096:biosynthesis / Q000145:classification*; D006801:Humans; D010446:Peptide Fragments; D011384:Proinsulin / Q000378:metabolism
chemical_list: D005755:Gastrins; D010446:Peptide Fragments; D011384:Proinsulin