title: Venepuncture for calcium assays: should we still avoid tourniquet?
authors.forename: B E
authors.initials: BE
authors.lastname: Walker
authors.forename: R B
authors.initials: RB
authors.lastname: Payne
mesh_terms: D001800:Blood Specimen Collection / Q000379:methods*; D002118:Calcium / Q000097:blood*; D006801:Humans; D014111:Tourniquets
chemical_list: D002118:Calcium