title: Unusual cause of aortic bioprosthesis dysfunction.
authors: Department of Cardiothoracic Surgery, Karolinska University Hospital, SE-171 76 Stockholm, Sweden. goran.kallner@karolinska.se
authors: Göran
authors: G
authors: Källner
authors: Dan
authors: D
authors: Lindblom
authors: Torbjörn
authors: T
authors: Ivert