1. Laboratory of Human Nutrition, Institute of Food Nutrition and Health, Department of Health Sciences and Technology, Swiss Federal Institute of Technology (ETH Zürich), Zürich, Switzerland;
2. Division of Hematology, University Hospital and University of Zürich, Zurich, Switzerland;
3. Hepcidinanalysis.com and Department of Laboratory Medicine, Translational Metabolic Laboratory, Radboud University Medical Centre, Nijmegen, The Netherlands; and
4. Division of Human Nutrition, Wageningen University, Wageningen, The Netherlands;
5. Department of Pediatrics, Columbia University, College of Physicians and Surgeons, New York, NY