also interesting to consider the absence of certain modules in specific brain regions. For example, it is not immediately clear why a module related to mitochondrial function (M7) was identified in CTX and CB, but not in CN, or why a module related to ribosomal function (M2) was identified in CTX, but nowhere else. It is possible that these discrepancies may reflect variation in the susceptibility of different brain regions to hypoxia or agonal stress48.
