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Table 3: Distributions of HSCs and PHFs by clinical diagnosis
N HSCs (mean ± SD) PHFs (mean ± SD)
Normal controls 130 4.37 ± 5.97 1.53 ± 1.47
Alzheimer disease 27 3.08 ± 3.92 4.89 ± 1.22
Age-matched normal controls 62 5.54 ± 4.39 2.25 ± 1.48
Note:—HSC indicates hippocampal sulcus residual cavity; PHF, perihippocampal fissure.
	N	HSCs (mean ± SD)	PHFs (mean ± SD)
Normal controls	130	4.37 ± 5.97	1.53 ± 1.47
Alzheimer disease	27	3.08 ± 3.92	4.89 ± 1.22
Age-matched normal controls	62	5.54 ± 4.39	2.25 ± 1.48