Duraflow II coating of cardiopulmonary bypass circuits reduces complement activation but does not affect the release of granulocyte enzymes: a European multicentre study. - Fosse,E.; Thelin,S.; Svennevig,J.L.; Jansen,P.; Mollnes,T.E.; Hack,E.,. (Eur J Cardiothorac Surg, 1997)