Piper Cornelia, Dreier Jens, Kleesiek Knut, Körfer Reiner, Horstkotte Dieter
Department of Cardiology, Heart and Diabetes Center North Rhine-Westphalia, Ruhr University Bochum, Georgstr. 11, D-32545 Bad Oeynhausen, Germany.
J Heart Valve Dis. 2006 Jul;15(4):499-501.