1. Edwards Lifesciences BMEYE, Amsterdam, The Netherlands;
2. Laboratory for Clinical Cardiovascular Physiology, Heart Failure Research Center, Academic Medical Center, Amsterdam, The Netherlands;
3. Department of Internal Medicine, Sint Antonius Ziekenhuis, Nieuwegein, The Netherlands;
4. Laboratory for Physiology, Institute for Cardiovascular Research, Vrije Universiteit, Amsterdam, The Netherlands;
5. Department of Systems Physiology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands;
6. Department of Internal Medicine, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands;
7. Department of Vascular Medicine, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands; and
8. Medical Research Council/Arthritis Research United Kingdom, Centre for Musculoskeletal Ageing Research, School of Life Sciences, The Medical School, Queen's Medical Centre, University of Nottingham, Nottingham, United Kingdom