Calculates the Sokal prognostic score for CML using age, spleen size, platelet count, and blast percentage. Formula: exp(0.0116×(age−43.4) + 0.0345×(spleen−7.51) + 0.188×((platelet/700)²−0.563) + 0.0887×(blasts−2.10)). Low <0.8, Intermediate 0.8–1.2, High >1.2.
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