Cover: Immunofluorescent micrograph section of pancreatic duct ligation (PDL)-injured mouse pancreas, showing an islet with mostly nonreplicating insulin-containing β-cells (yellow) within a vast sea of highly replicating duct-like structures. The mouse was continuously labeled with CldU (green) and then IdU (red) before it was killed. Nuclei were labeled with DAPI (blue). Courtesy of Matthew M. Rankin, coauthor of “β-Cells Are Not Generated in Pancreatic Duct Ligation–Induced Injury in Adult Mice,” which appears in this issue of Diabetes on p. 1634.

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