title: Reply.
authors.affiliation: Kerckhoff Klinik Bad Nauheim, Cardiovascular Surgery, Beneke St, Benekestraße 2-8, 61231, Bad Nauheim, Germany. Electronic address: d.serio@gmx.net.
authors.forename: Daniela
authors.initials: D
authors.lastname: Serio
authors.affiliation: Kerckhoff Klinik Bad Nauheim, Cardiovascular Surgery, Beneke St, Benekestraße 2-8, 61231, Bad Nauheim, Germany.
authors.forename: Mirko
authors.initials: M
authors.lastname: Doss
authors.affiliation: Kerckhoff Klinik Bad Nauheim, Cardiovascular Surgery, Beneke St, Benekestraße 2-8, 61231, Bad Nauheim, Germany.
authors.forename: Thomas
authors.initials: T
authors.lastname: Walther