"Breithardt G" . "G\u00FCnter" . . "O A" . "Breithardt Ole-A." . "Breithardt G." . "Breithardt Ole-Alexander" . "O" . "Ole-A." . "G." . "Breithardt Gunter" . "G" . "Breithardt G\u00FCnter" . "Ole-Alexander" . "Breithardt" . "Breithardt Gu\u0308nter" . "Gu\u0308nter" . "Gunter" . "O-A" . "g.breithardt@uni-muenster.de" . "olebreithardt@gmx.de" . "ole.breithardt@med.ma.uni-heidelberg.de" .