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Intravital microscopic images of subpleural pulmonary arterioles comparing effects of a nitric oxide inhibitor (L‐NAME, 0.1 mg/kg body weight) on arteriolar diameter in a wild‐type (WT) control mouse and in a Alzheimer's disease model mouse (TgAD). White lines along vessels indicate interior arteriolar diameter. Note constriction in WT and dilation in TgAD.
