Cardiopulmonary Bypass in Patients With Pre-existing Coagulopathy William DeBois, Junli Liu, Leonard Lee, Leonard Girardi, Wilson Ko, Anthony Tortolani, Karl Krieger and O. Wayne Isom J Extra Corpor Technol, 37 1 (2005) 15-22 Published online: 15 March 2005 DOI: 10.1051/ject/200537015