G-allele of Intronic rs10830963 in MTNR1B Confers Increased Risk of Impaired Fasting Glycemia and Type 2 Diabetes Through an Impaired Glucose-Stimulated Insulin Release: Studies Involving 19,605 Europeans Diabetes June 2009 58:1450-1456; published ahead of print March 26, 2009, doi:10.2337/db08-1660