Funding for this research was provided by:
Deutsche Forschungsgemeinschaft (KFO214)
Received: 6 November 2019
Accepted: 6 December 2019
First Online: 3 January 2020
Ethics approval and consent to participate
: All experiments were approved by the governmental review committee on animal care (35–9185.81/G62–08, G117/13).
: Not applicable.
: MS has a European Patent 10 718 875.7 with royalties paid by Siemens and RaySearch. MS, CG, PP, SB, RG, JD and CPK declare that they have no competing interests.