PULMONARY FUNCTION IN ANKYLOSING SPONDYLITIS.
D000844:Ankylosis; D001784:Blood Gas Analysis; D006801:Humans; D013147:Spirometry; D013166:Spondylitis; D013167:Spondylitis, Ankylosing
BLOOD GAS ANALYSIS; SPIROMETRY; SPONDYLITIS, ANKYLOSING