%0 Letter %T Older Adults With Smaller and Less Complex Social Networks Show Deficits in Medial Temporal Cerebrovascular Reactivity. %A Chang E %A Kapoor A %A Lohman T %A Dutt S %A Alitin JPM %A Sible IJ %A Ho JK %A Gaubert A %A Blanken AE %A Mather M %A Shao X %A Wang DJJ %A Nation DA %J J Am Heart Assoc %V 13 %N 15 %D 2024 Aug 6 %M 39011958 %F 6.106 %R 10.1161/JAHA.124.034390