The Philadelphia chromosome in an unusual case of myeloproliferative disease.
D000368:Aged; D000469:Alkaline Phosphatase / Q000096:biosynthesis*; D001172:Arthritis, Rheumatoid / Q000150:complications; D001772:Blood Cell Count; D001855:Bone Marrow Diseases / Q000235:genetics*; D002869:Chromosome Aberrations; D025063:Chromosome Disorders; D006801:Humans; D007951:Leukemia, Myeloid / Q000235:genetics*; D013167:Spondylitis, Ankylosing / Q000150:complications