<prompt> Low serum copper is seen in all ExceptAceruloplasminemiaMenke diseaseWilson diseasePrimary biliary cirrhosis  <response>: In primary biliary cirrhosis PBC liver copper retention occurs as a complication of cholestasis. Fifty-four had increased liver copper concentrations. Liver cell synthetic function was well preserved. All the patients had normal prothrombin times, and only two had subnormal serum albumin concentrations. Ref Davidson 23rd edition pg 344 