Circulation: Cardiovascular Imaging. 11(3):e007622, MARCH 2018 DOI: 10.1161/CIRCIMAGING.118.007622 , PMID: 29555839 Issn Print: 1941-9651 Publication Date: March 2018 Print Longitudinal Doppler Assessment of Congenital Aortic Stenosis: It Is About Time! Mark Friedberg; + Author Information From the Labatt Family Heart Centre, The Hospital for Sick Children, Toronto, Ontario, Canada (M.K.F.); and Department of Pediatrics, University of Toronto, Ontario, Canada (M.K.F.). Checking for direct PDF access through Ovid Abstract Abstract unavailable for this article.