On the cover: A polarized light micrograph of metformin crystals. This issue features two articles on the genetic determinants
of metformin response, “Metformin Pharmacogenomics: Current Status and Future Directions” by Pawlyk et al. (p. 2590) and “Metformin Pharmacogenomics: Biomarkers to Mechanisms” by Wang and Weinshilboum (p. 2609). Photo credit: Antonio Romero/Science Source, www.sciencesource.com.
Authors are invited to submit images for use on the cover of Diabetes. Black and white or color photographic or photomicrographic images are acceptable. Cover image submission and selection is
completely independent of article submission and the peer-review process. Click here for more information.