Leukemia following x-ray therapy for ankylosing spondylitis.
D006801:Humans; D007938:Leukemia / Q000209:etiology*; D013166:Spondylitis; D013167:Spondylitis, Ankylosing / Q000532:radiotherapy*; D014964:X-Ray Therapy
LEUKEMIA/etiology; SPONDYLITIS, ANKYLOSING/radiotherapy