the diagnostic value in polycythemia of the presence of endogenous erythroid colonies derived from bone marrow cells ( eecs ) was assessed in a prospective study on 108 patients referred for polycythemia ( hb greater than g/dl in men , greater than 16 g/dl in women ) with normal plasma volume by comparison with the standard criteria , the bone marrow grade , and the serum erythropoietin ( epo ) level .
C0005955
bone marrow cells
C0005953
bone marrow