1. Jordbro Primary Health Care Center, Stockholm, Sweden.
2. Department of Integrative Biology, University of California, Berkeley, California, USA.
3. The Rolf Luft Research Center for Diabetes and Endocrinology, Karolinska Institutet, Stockholm, Sweden.
4. Division of Infectious Diseases, Department of Medicine Huddinge, Karolinska Institutet, Stockholm, Sweden.