Observational study of mortality risk stratification by ischemic presentation in patients with acute type A aortic dissection: the Penn classification.

Augoustides JG, Geirsson A, Szeto WY, Walsh EK, Cornelius B, Pochettino A, Bavaria JE. Observational study of mortality risk stratification by ischemic presentation in patients with acute type A aortic dissection: the Penn classification. Nat Clin Pract Cardiovasc Med. 2009 Feb; 6(2):140-6.

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