1. Division of Endocrinology, Diabetes, and Clinical Nutrition; University Hospital Zürich; Rämistrasse 100 Zürich 8091 Switzerland
2. Competence Center Personalized Medicine UZH/ETH; ETH Zürich and University of Zürich; Zürich Switzerland
3. Zürich Center for Integrative Human Physiology; University of Zürich; Zürich Switzerland