Gu, Y John Pulsatile cardiopulmonary bypass in elderly patients with increased pulse pressure. [electronic resource] - Critical care medicine Aug 2009 - 2489; author reply 2489-90 p. digital Publication Type: Comment; Letter ISSN: 1530-0293 Standard No.: 10.1097/CCM.0b013e3181ac4886 doi Subjects--Topical Terms: AgedCardiopulmonary BypassHumansHypertensionIntra-Aortic Balloon PumpingPulsatile Flow