1 Sandra Lockmer, MD, Karolinska Institutet, Stockholm, Sweden Karolinska University Hospital, Stockholm, Sweden; Bjørn Østenstad, MD, PhD, Oslo University Hospital, Oslo, Norway; Hans Hagberg, MD, PhD, Academic Hospital, Uppsala, Sweden; Harald Holte, MD, PhD, Oslo University Hospital, Oslo, Norway; Björn Engelbrekt Wahlin, MD, PhD, Karolinska Institutet, Stockholm, Sweden Karolinska University Hospital, Stockholm, Sweden; Karin Fahl Wader, MD, PhD, St Olavs Hospital, Trondheim, Norway; Karin Ekström Smedby, MD, PhD, Karolinska Institutet, Stockholm, Sweden Karolinska University Hospital, Stockholm, Sweden; Peter Brown, MD, PhD, Rigshospitalet, Copenhagen, Denmark; and Eva Kimby, MD, PhD, Karolinska Institutet, Stockholm, Sweden.