1. Department of Biomedical Sciences (J.v.d.H., S.R., C.A., T.A.J.), University of Copenhagen, Denmark.
2. The August Krogh Section for Human Physiology, Department of Nutrition, Exercise and Sports (J.v.d.H., Y.H.), University of Copenhagen, Denmark.
3. Department of Biomedicine, Aarhus University, Denmark (C.A.).