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. Author manuscript; available in PMC: 2024 Mar 22.
Published in final edited form as: Neurobiol Aging. 2022 Feb 23;113:55–62. doi: 10.1016/j.neurobiolaging.2022.02.006

Fig. 1.

Fig. 1.

Schematic illustration of temporal synchronizations between breathing paradigms and pseudo-continuous arterial spin labeling (pCASL) MRI acquisitions. IN = breathe in, OUT = breathe out, NORMAL = breathe normally, BH = breath hold, img = perfusion image.