Department of Obstetrics and Gynaecology, Akershus University Hospital, Norway, Department of Obstetrics and Gynaecology, Oestfold Hospital Trust, Norway, Division of Mental Health, Norwegian Institute of Public Health, Oslo, Norway, Faculty of Medicine, University of Oslo, Norway, Specialist Virology Center, Department of Laboratory Medicine Royal Infirmary of Edinburgh of Edinburg,UK, Institu...