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Figure 1. (A) Photograph of a pancreatic primordium freshly dissected from an E28 pig embryo and (B and C) photomicrographs of sections originating from E28 primordia stained using anti-insulin antibodies (B) or control serum (C). dp, dorsal pancreas; vp, ventral pancreas; duo, duodenum. Arrow delineates insulin-positive cells (B). Scale bars 10 um (A) and 1 um (B and C).
