1. Lise Bech Jellesmark Thorsen, Birgitte Vrou Offersen, Marie Overgaard, and Jens Overgaard, Aarhus University Hospital, Aarhus; Hella Danø, Herlev Hospital, Herlev; Martin Berg, Vejle Hospital, Vejle; Ingelise Jensen, Aalborg University Hospital, Aalborg; Anders Navrsted Pedersen, Rigshospitalet, Copenhagen; Sune Jürg Zimmermann, Odense University Hospital, Odense, Denmark; and Hans-Jürgen Brodersen, St Franziskus-Hospital, Flensburg, Germany.