D/Dx
From Gomerpedia
D/Dx is shorthand for differential diagnosis. If not, then the only thing else we can think of is to simplify the fraction, in which case D/Dx reduces to 1/x. As for what 1/x means, we have no clue either. Consult Renal, they might know.
Related Reading
- Henderson-Hasselbalch Equation
- Zebra