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Histograms of the signal and diffusion parameter fits of the ethanol phantom at room temperature for the monoexponential, monoexponential plus noise, biexponential, and the stretched-exponential models. Each model was voxelwise fit to the data. The published diffusion coefficient of room temperature ethanol is 1100 ± 200 µm2/msec (31). [Color figure can be viewed in the online issue, which is available at www.interscience.wiley.com.]
