Albertine Donker

Chapter 2 78 Author Contributions Conceptualization: A.E.D. and D.W.S. Writing: A.E.D., H.S. Reviewing and editing: D.W.S. Conflict-of-interest disclosure DWS is an employee of Radboudumc that offers hepcidin assays and hepcidin reference material to the research, clinical and Pharmaceutical community at a fee for service via the Hepcidinanalysis initiative (www.hepcidinanalysis.com ). 42 Acknowledgements We would like to thank Bart de Vries, librarian of the Máximal Medical Center, Veldhoven, Netherlands, for supporting the process of literature searching.