title: Avoiding artifactual errors in assay of phenylalanine hydroxylase.
mesh_terms: D002478:Cells, Cultured; D005189:False Positive Reactions; D005347:Fibroblasts / Q000201:enzymology; D006801:Humans; D006900:Hydroxylation; D008722:Methods; D010651:Phenylalanine Hydroxylase / Q000032:analysis*
chemical_list: D010651:Phenylalanine Hydroxylase