title: Low serum creatine kinase activity in rheumatoid arthritis.
authors.forename: J R
authors.initials: JR
authors.lastname: Delanghe
authors.forename: M L
authors.initials: ML
authors.lastname: De Buyzere
mesh_terms: D001172:Arthritis, Rheumatoid / Q000201:enzymology*; D003402:Creatine Kinase / Q000097:blood*; D006801:Humans
chemical_list: D003402:Creatine Kinase