1. Department of Psychology; University of Gothenburg; Gothenburg
2. Division of Clinical Cancer Epidemiology; Department of Oncology-Pathology; Karolinska Institutet; Stockholm
3. Division of Clinical Cancer Epidemiology; Department of Oncology; Institute of Clinical Sciences; Sahlgrenska Academy; Gothenburg
4. Department of Oncology; Sahlgrenska University Hospital; Gothenburg; Sweden