Phenotypic analyses included age of onset, clinical subtype, Kayser-Fleischer ring (KFR), copper metabolism profiles (serum copper [SCu], serum copper oxidase [SCO], ceruloplasmin [CP]), Unified Wilson’s Disease Rating Scale Part I (UWDRS-I), and Child-Turcotte-Pugh (CTP) scores. The gene discussed is CP; the disease is Wilson disease.