“…Many different compounds were used (Cu-sulphate, Cuchloride, Cu-EDTA, Cu-glycinate, Cu-histidinate or Cu-albumin-complex). Substitution by oral administration was achieved only with extremely high doses (Danks et al 1972, Danks 1983, Horn 1984, Lott et al 1975; better absorption was obtained with Cu-nitriloacetate (Danks 1983). Normal serum copper levels and liver values were attained, but only slight clinical improvement was registered (Danks 1983, Danks & Camakaris 1983, Horn 1984, Lott et al 1975, Wehinger et al 1975.…”