Funding for this research was provided by:
Helmholtz-Gemeinschaft (Portfolio Topic Metabolism, iMed)
Medizinischen Hochschule Hannover (Young Academy)
Deutsche Forschungsgemeinschaft (RESIST (ID 390874280))
Received: 22 August 2019
Accepted: 13 December 2019
First Online: 7 January 2020
Ethics approval and consent to participate
: The study was conducted according to the Declaration of Helsinki and was approved by the Ethics Committee of Hannover Medical School (file no. 2413–2014). Informed consent was waived due to the use of previously collected, anonymized samples.
: Not applicable.
: The authors declare that they have no conflict of interest relating to conduct of the study or publication of the manuscript.