title: Ankylosing vertebral hyperostosis.
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013122:Spinal Diseases / Q000175:diagnosis*; D013167:Spondylitis, Ankylosing / Q000175:diagnosis