1. Service of Endocrinology, Diabetology and Metabolism, University of Lausanne, Lausanne, Switzerland
2. Department of Internal Medicine, Endocrinology Unit, Patras University Medical School, Patras, Greece
3. Institute of Biology, Medicinal Chemistry and Biotechnology, National Hellenic Research Foundation, Athens, Greece
4. Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, United States