Subjective and objective predictors of WHO diagnosis. (A) Subjective estimates of the relative importance of 16 morphologic features in determining WHO diagnosis for each of the 3 hematopathologists. (B) Factors independently associated with WHO diagnosis for the 3 hematopathologists. The relative proportion of the pie chart for each variable was calculated as the ratio of its regression coefficient to the sum of all regression coefficients in the model, after all variables were scaled to the same 0 to 1 range.