(a) Coronal water peak height image of mouse brain. (b) Magnified water peak height image of one half of the hippocampus as defined by the white square in (a). Arrows indicate the following features: molecular layer (Mol), stratum lacunosum-moleculare (Lmol), stratum oriens (Or), pyramidal layer (Py), stratum radiatum (Rad), granular layer of dentate gyrus (GrDG), and polymorph layer of dentate gyrus (PoDG). Arrows in (c), which is acetylcholinesterase staining of the hippocampus, correlate with arrows in (b).