title: Rheumatoid arthritis refractory to standard therapy.
authors.forename: D
authors.initials: D
authors.lastname: Nordstrom
mesh_terms: D000493:Allopurinol / Q000627:therapeutic use*; D001172:Arthritis, Rheumatoid / Q000188:drug therapy*; D001379:Azathioprine / Q000008:administration & dosage*; D004359:Drug Therapy, Combination; D006801:Humans; D008099:Liver / Q000201:enzymology
chemical_list: D000493:Allopurinol; D001379:Azathioprine