concordance was improved greatly by the use of two technics that are logical extensions of the scoring system : performing 100-200 differential cell counts to determine the correct percentages in borderline cases , and using reference drawings that illustrate blasts with cytoplasmic contents of 15 % , 20 % , and 25 % in determining the cell 's nuclear cytoplasmic ratio .
C0010834
cytoplasmic
C0007634
cell 's