1. Department of Medical Cell Biology, Uppsala University, Uppsala, Sweden.
2. Department of Pathology, Karolinska University Hospital, Stockholm, Sweden.
3. Karolinska Institutet, The Rolf Luft Research Center for Diabetes and Endocrinology, Stockholm, Sweden.
4. Department of Pathology, College of Medicine and Najran University Hospital, Najran University, Najran, Saudi Arabia.
5. Department of Comparative Medicine, Karolinska University Hospital, Stockholm, Sweden.
6. Department of Integrative Biology, University of California, Berkeley, Berkeley, California.