1. Department of Radiation Sciences, Oncology, Umeå University, Umeå, Sweden
2. Mammography Screening Program for Norrbotten, Sunderby Hospital, Luleå, Sweden; Department of Radiation Sciences, Oncology, Umeå University, Umeå, Sweden
3. Mammography Department, Sundsvall Hospital, Sundsvall, Sweden
4. Associate Professor of Epidemiology, Biostatistician, Epidemiology and Public Health Sciences Department, Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
5. Professor of Cancer Epidemiology, Oncologist, Department of Radiation Sciences, Oncology, Umeå University, Umeå, Sweden