title: Effect of storage on acetylcholinesterase activity.
mesh_terms: D000110:Acetylcholinesterase / Q000097:blood*; D000818:Animals; D001793:Blood Preservation / Q000379:methods*; D002417:Cattle / Q000097:blood*; D004912:Erythrocytes / Q000201:enzymology*; D005615:Freezing; D013552:Swine / Q000097:blood*
chemical_list: D000110:Acetylcholinesterase