Funding for this research was provided by:
Deutsche Forschungsgemeinschaft (STE-1895/4-1)
Received: 6 June 2018
Accepted: 4 January 2019
First Online: 15 January 2019
Ethics approval and consent to participate
: This study has been approved by the Ethical Committee of the University of Muenster (Study No 2014–181-f-S). All patients and controls involved in the study provided a written approval to store serum samples, measure serum hepcidin and GDF-15 level, and retrospectively analyze it in relation to patient’s medical history and demographical data. The study was performed according to the Declaration of Helsinki.
: Not applicable.
: The authors declare that they have no competing interests.
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