title: [Megaloblastic anemia caused by sulfasalazine in rheumatoid arthritis or ankylosing spondylitis?].
mesh_terms: D000748:Anemia, Macrocytic / Q000139:chemically induced*; D000749:Anemia, Megaloblastic / Q000139:chemically induced*; D001172:Arthritis, Rheumatoid / Q000150:complications*; D006801:Humans; D008297:Male; D008875:Middle Aged; D013167:Spondylitis, Ankylosing / Q000150:complications*; D012460:Sulfasalazine / Q000009:adverse effects*
chemical_list: D012460:Sulfasalazine
vernacular_title: Anemia megaloblástica por sulfasalacina en la artritis reumatoidea o en la espondilitis anquilosante?