platelets from 28 patients with the myeloproliferative diseases ( mpd ) polycythaemia vera ( 9 ) , essential thrombocythaemia ( 6 ) , myelofibrosis with myeloid metaplasia ( 5 ) and chronic myelogenous leukaemia ( 8 ) were examined for an rna-dependent dna polymerase activity using standardized conditions permitting highly reproducible quantitation .
C0027022
myeloproliferative diseases
C0001815
myelofibrosis with