title: Letter: Stability of gamma glutamyltransferase in serum.
mesh_terms: D004355:Drug Stability; D005069:Evaluation Studies as Topic; D005615:Freezing; D006801:Humans; D008722:Methods; D013053:Spectrophotometry; D013696:Temperature; D013997:Time Factors; D005723:gamma-Glutamyltransferase / Q000097:blood*
chemical_list: D005723:gamma-Glutamyltransferase