Other, less frequent variants were related to HNF1A-maturity onset of diabetes of the young, MODY, (n = 7, 0.18%); HFE-related haemochromatosis (n = 2, 0.05%); ACVRL1-hereditary haemorrhagic telangiectasia (n = 2, 0.05%); and ATP7B–Wilson disease (n = 1, 0.03%). This evidence concerns the gene ATP7B and maturity-onset diabetes of the young.