1. Department of Endocrinology; Odense University Hospital; Odense Denmark
2. Section for Sport Science; Department of Public Health; Aarhus University; Aarhus Denmark
3. Department for Congenital Disorders; Statens Serum Institut; Copenhagen Denmark
4. Institute of Regional Health Research; University of Southern Denmark; Odense Denmark
5. Department of Sports Science and Clinical Biomechanics; University of Southern Denmark; Odense Denmark