title: Partitioning of the contributions of rib cage and abdomen to ventilation in ankylosING SPONDYLITIS.
mesh_terms: D000005:Abdomen / Q000502:physiology*; D000328:Adult; D006801:Humans; D006985:Hyperventilation / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D009068:Movement; D011187:Posture; D012119:Respiration; D012272:Ribs / Q000503:physiopathology*; D013147:Spirometry; D013167:Spondylitis, Ankylosing / Q000503:physiopathology*; D014797:Vital Capacity