1. Department of Internal Medicine and Clinical Nutrition, Institute of Medicine at Sahlgrenska Academy, University of Gothenburg and The Department of Endocrinology, Sahlgrenska University Hospital, Gothenburg, Sweden
2. Department of Pathology, Sahlgrenska University Hospital, Gothenburg, Sweden
3. Department of Oncology, Sahlgrenska University Hospital, Gothenburg, Sweden
4. Department of Surgery, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Sahlgrenska University Hospital, Gothenburg, Sweden