Identity of the abnormal F-group chromosome associated with polycythaemia vera.
D001854:Bone Marrow Cells; D002869:Chromosome Aberrations; D025063:Chromosome Disorders; D002903:Chromosomes, Human, 19-20; D003582:Cytogenetics; D006801:Humans; D007621:Karyotyping; D008214:Lymphocytes; D011087:Polycythemia Vera / Q000175:diagnosis / Q000235:genetics*