title: Concerning the source and distribution of  -glutamyl transpeptidase in sputum.
mesh_terms: D000217:Acyltransferases / Q000378:metabolism*; D005973:Glutamine; D006801:Humans; D013183:Sputum / Q000166:cytology / Q000201:enzymology*
chemical_list: D005973:Glutamine; D000217:Acyltransferases