1. 1Team Novo Nordisk Professional Cycling Team, Atlanta, GA
2. 2Department of Endocrinology and Metabolic Diseases, Kantonsspital Olten, Olten, Switzerland
3. 3Department of Diabetes, Endocrinology, Nutritional Medicine and Metabolism, Inselspital, Bern, University Hospital, University of Bern, Bern, Switzerland
4. 4Research Institute for Sport and Exercise Science, Liverpool John Moores University, Liverpool, U.K
5. 5Institute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter, U.K