Retrograde Blood Flow in the Aortic Arch Determined by Transesophageal Doppler Ultrasound Cerebrovasc Dis 2009;27:22–28 - DOI:10.1159/000172630 © 2008 S. Karger AG, Basel
Retrograde Blood Flow in the Aortic Arch Determined by Transesophageal Doppler Ultrasound Cerebrovasc Dis 2009;27:22–28 - DOI:10.1159/000172630 © 2008 S. Karger AG, Basel
Retrograde Blood Flow in the Aortic Arch Determined by Transesophageal Doppler Ultrasound Cerebrovasc Dis 2009;27:22–28 - DOI:10.1159/000172630 © 2008 S. Karger AG, Basel