Spondylitis in post-pubertal patients with rheumatoid arthritis of juvenile onset.
D000293:Adolescent; D001168:Arthritis; D001172:Arthritis, Rheumatoid; D002648:Child; D006801:Humans; D007223:Infant; D013166:Spondylitis / Q000150:complications*
ARTHRITIS, RHEUMATOID/in infant and child; SPONDYLITIS/complications