The clinical biochemical diagnostic set for BEN consists of the patient data (place of living), reduced glomerular filtration rate (GFR), proteinuria below 1 g/24 h, microalbuminuria, urinary markers of tubular injury (β2-microglobulin) and renal atrophy and nephrosclerosis detected by ultrasound [18]. Here, HLA-G is linked to Balkan nephropathy.