title: Let's talk about sex : (title of a song from 1991 by 'Salt 'n Pepa').
authors.affiliation: Department of Cardiology, Division Heart and Lungs, University Medical Centre Utrecht, PO Box 8550, E04.2011, 3508 GA, Utrecht, the Netherlands, c.a.deVriesFeyens-2@umcutrecht.nl.
authors.forename: C A
authors.initials: CA
authors.lastname: de Vries Feyens
authors.forename: M J
authors.initials: MJ
authors.lastname: Cramer