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. 2021 Jan 13;473(5):735–751. doi: 10.1007/s00424-020-02508-9

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© The Author(s) 2021

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Fig. 2 — The vascular changes and mechanisms seen with ageing that may lead to functional alterations in cerebral autoregulation (CA) and neurovascular coupling (NVC). NO, nitric oxide; CA, cerebral autoregulation; NVC, neurovascular coupling