Cerebrovascular Responsiveness to Hypercapnia Is Stable over Six Months in Older Adults. oleh Matthew D Spencer, Amanda V Tyndall, Margie H Davenport, Laurie Argourd, Todd J Anderson, Gail A Eskes, Christine M Friedenreich, David B Hogan, Richard Leigh, Bernard Meshi, Eric E Smith, Ben J Wilson, Stephen B Wilton, Marc J Poulin