title: Reply.
authors.affiliation: St. Elisabeth Ziekenhuis Tilburg, the Netherlands.
authors.forename: W J
authors.initials: WJ
authors.lastname: van Rooij
authors.affiliation: St. Elisabeth Ziekenhuis Tilburg, the Netherlands.
authors.forename: M
authors.initials: M
authors.lastname: van Eijck
authors.affiliation: St. Elisabeth Ziekenhuis Tilburg, the Netherlands.
authors.forename: R
authors.initials: R
authors.lastname: Bechan
authors.affiliation: St. Elisabeth Ziekenhuis Tilburg, the Netherlands.
authors.forename: G
authors.initials: G
authors.lastname: Roks