1. Ingvild Aune, Midwife, Assistant Professor, Faculty of Nursing, Sør-Trøndelag University College, Trondheim, Norway
2. Unn Dahlberg, Midwife, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway
3. Oddbjørn Ingebrigtsen, Associate Professor, Faculty of Nursing, Sør-Trøndelag University College, Trondheim, Norway