title: Aortic valve replacement in middle-aged patients: Is the increased use of bioprostheses justified?
authors.affiliation: a Department of Cardiothoracic Surgery and Anesthesiology , Karolinska University Hospital , Stockholm , Sweden.|b Department of Molecular Medicine and Surgery , Karolinska Institutet , Stockholm , Sweden.
authors.forename: Natalie
authors.initials: N
authors.lastname: Glaser
authors.affiliation: a Department of Cardiothoracic Surgery and Anesthesiology , Karolinska University Hospital , Stockholm , Sweden.|b Department of Molecular Medicine and Surgery , Karolinska Institutet , Stockholm , Sweden.
authors.forename: Ulrik
authors.initials: U
authors.lastname: Sartipy