S = Screening tests, TSH, fT4, fT3, Thyroid Receptor antibodies (TRAK), Tissue Peroxidase antibodies (TPO-ak), Hb, leukocytes, thrombocytes (trc), diff.-leukocytes, fasting B-glucose, HbA1c, Calcium, Albumin, Sodium, Potassium, Creatinine, ASAT, ALAT, ALP, GT, Bil, PK, APTT, U-iodine R = Routine tests, TSH, fT4, fT3, Hb, Creatinine R+ = Routine tests + ASAT, ALAT, ALP, GT, Bil, TRAK, trc, leukocytes, diff. R++ = Routine tests + + Fasting B-glucose, U-iodine B = Biobank samples according to GD2002 (serum, plasma, buffy coat) C = Clinical control - vital signs, physical examination, weight, eye status O = Ophthalmologist - eye status D = Dietary questionnaire