title: Gamma glutamyl transpeptidase in chronic obstructive pulmonary disease.
mesh_terms: D001991:Bronchitis / Q000201:enzymology; D002855:Chromatography, Thin Layer; D002908:Chronic Disease; D004247:DNA / Q000032:analysis; D004151:Dipeptides / Q000494:pharmacology; D004952:Esters; D005998:Glycine / Q000494:pharmacology; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000201:enzymology*; D008715:Methionine / Q000494:pharmacology; D013183:Sputum / Q000201:enzymology*; D007507:Therapeutic Irrigation; D005723:gamma-Glutamyltransferase / Q000032:analysis*
chemical_list: D004151:Dipeptides; D004952:Esters; D004247:DNA; D008715:Methionine; D005723:gamma-Glutamyltransferase; D005998:Glycine