title: Cancer mortality among patients with ankylosing spondylitis not given X-ray therapy.
mesh_terms: D000328:Adult; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007953:Leukemia, Radiation-Induced / Q000401:mortality; D008297:Male; D009369:Neoplasms / Q000150:complications / Q000401:mortality*; D009381:Neoplasms, Radiation-Induced / Q000401:mortality; D011878:Radiotherapy / Q000009:adverse effects*; D011879:Radiotherapy Dosage; D013167:Spondylitis, Ankylosing / Q000150:complications / Q000401:mortality* / Q000532:radiotherapy