1. Division of Endocrinology, Department of Medicine, Leiden University Medical Center, Leiden, The Netherlands.
2. Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands.
3. Department of Human Biology and Movement Sciences, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, Maastricht, The Netherlands.
4. Center for Bone Quality, Division of Endocrinology, Leiden University Medical Center, Leiden, The Netherlands.