Cover: The image is a computer screen display of a human DNA sequence from the Human Genome Project. This issue of Diabetes features an article examining diabetes risk loci, “Impact of Type 2 Diabetes Susceptibility Variants on Quantitative Glycemic
Traits Reveals Mechanistic Heterogeneity,” by Dimas et al. (p. 2185) and an accompanying commentary, “Physiology Helps GWAS Take a Step Closer to Mechanism,” by Frayling and Hattersley (p.
1836). Credit: James King-Holmes/Science Photo Library. For more information, please visit www.sciencesource.com.
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