title: Letter: Standards in clinical chemistry.
mesh_terms: D000469:Alkaline Phosphatase / Q000097:blood; D001219:Aspartate Aminotransferases / Q000097:blood; D002624:Chemistry, Clinical; D003954:Diagnostic Services / Q000592:standards*; D005069:Evaluation Studies as Topic; D006801:Humans; D007527:Isoenzymes / Q000097:blood; D008722:Methods
chemical_list: D007527:Isoenzymes; D001219:Aspartate Aminotransferases; D000469:Alkaline Phosphatase