Brenker, C. [P:(DE-HGF)0] ; Rehfeld, A. [0000-0001-5315-2022] ; Schiffer, C. [P:(DE-HGF)0] ; Kierzek, M. [P:(DE-HGF)0] ; Kaupp, U. B. [P:(DE-Juel1)IHRS-BioSoft-20906] ; Skakkebæk, N. E. [P:(DE-HGF)0] ; Strünker, T. [P:(DE-HGF)0]