1. Department Donor Studies, Sanquin Research, Amsterdam, The Netherlands;
2. Laboratory for Human Nutrition, Swiss Federal Institute of Technology Zurich, Zurich, Switzerland;
3. Translational Metabolic Laboratory, Department of Laboratory Medicine, Radboud University Medical Center, Nijmegen, The Netherlands; and
4. Department of Transfusion Medicine and
5. Department of Donor Affairs, Sanquin Blood Bank, Amsterdam, The Netherlands