[Double disease in rheumatology].
D001172:Arthritis, Rheumatoid / Q000150:complications*; D003937:Diagnosis, Differential; D006801:Humans; D008180:Lupus Erythematosus, Systemic / Q000150:complications*; D012595:Scleroderma, Systemic / Q000150:complications*; D013167:Spondylitis, Ankylosing / Q000150:complications*
Doble enfermedad en reumatología.