11.   His arthritis is more manageable now.

12.   In zoos, however, where the birds typically live on hard surfaces, arthritis is not uncommon.

13.   The most common arthritis in children is juvenile rheumatoid arthritis, the kind John has.

14.   The most common arthritis in children is juvenile rheumatoid arthritis.

15.   Arthritis is the disease of the joints, often characterised by inflammation, pain and stiffness, causing the affected area to turn red and swell.

16.   Arthritis was fifth.

17.   Delgado said collagen-induced arthritis is the animal version of the disease most similar to human rheumatoid arthritis.

18.   Psoriatic arthritis is an inflammatory disease of the joints and connective tissue, causing pain and swelling in joints as well as scaly skin patches.