Adolescent / Prospective studies / Humans / Child / Female / Male / Follow-up studies / Diabetic Nephropathy / Clinical Sciences / Children and Adolescents / Public health systems and services research / Disease Progression / Albuminuria / Type 2 Diabetes Mellitus / Drug treatment / Male / Follow-up studies / Diabetic Nephropathy / Clinical Sciences / Children and Adolescents / Public health systems and services research / Disease Progression / Albuminuria / Type 2 Diabetes Mellitus / Drug treatment