For each subject that we provide DWI data, there is a file with subjects ID followed by either `DRBUDDI_up_final.bmtxt' or `DRBUDDI_final.bmtxt'. These files can be used to generate the bval and bvec files using the DIFFPREP command from the TORTOISE software.

TORTOISE can be downloaded from https://tortoise.nibib.nih.gov/tortoise/