title: Letter: Mexicali treatment of rheumatoid arthritis.
mesh_terms: D000380:Agranulocytosis / Q000139:chemically induced*; D001172:Arthritis, Rheumatoid / Q000188:drug therapy*; D002568:Certification; D006801:Humans; D008800:Mexico; D011720:Pyrazoles / Q000009:adverse effects* / Q000627:therapeutic use; D011781:Quackery
chemical_list: D011720:Pyrazoles