Johns Hopkins Diabetes GuideSearch Johns Hopkins Diabetes GuideABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZImpaired glucose tolerance (IGT)Maturity Onset Diabetes of Youth (MODY)MetforminPrediabetesType 2 Diabetes: Environmental Risk Factors and Screening