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Distribution of the (A) stimuli with the associated MRI sequence and (B) paradigm types with associated total duration of the CVR experiment. In (A), the “breath modulation” stimulus includes breath-holding, paced breathing, and hyperventilation stimuli. ACZ, acetazolamide injection; RS, resting-state; BOLD, blood oxygen-level dependent; ASL, arterial spin-labelling; PC, phase contrast; DSC, dynamic susceptibility contrast; VASO, vascular space occupancy.
