Fig. 3From: Impact of bariatric surgery on cerebral vascular reactivity and cognitive function: a non-randomized pilot studyMiddle cerebral artery (MCA) cross-sectional area (CSA) responses to 3 min of hypercapnic stimulus in a obese pre-bariatric surgery patients, b age-matched healthy controls, c young reference controls, and d mean percent changes in CSA by group. Data are mean ± SDBack to article page