The bilirubin content of serum does not affect gamma-glutamyltransferase activity.
D000217:Acyltransferases / Q000097:blood*; D001663:Bilirubin / Q000097:blood*; D006801:Humans; D012016:Reference Values; D013053:Spectrophotometry; D005722:gamma-Glutamylcyclotransferase / Q000097:blood*
D000217:Acyltransferases; D005722:gamma-Glutamylcyclotransferase; D001663:Bilirubin