by Feindt, Peter R., Walcher, Sandra, Volkmer, Ingo, Keller, Hans E., Straub, Uwe, Huwer, Hanno, Seyfert, Ulrich T., Petzold, Thomas, Gams, Emmeran
Published in The Annals of thoracic surgery (01.10.1995)

by Straub, U J, Huwer, H, Kalweit, G, Volkmer, I, Gams, E
Published in The Journal of heart valve disease (01.07.1997)

by Rettig, Gerd, Doenecke, Peter, Sen, Semi, Volkmer, Ingo, Bette, Ludwig
Published in The American heart journal (01.11.1979)