1. Clinic of Nuclear Medicine, Klinikum Lüdenscheid, Lüdenscheid, Germany
2. North Lakes Clinical, Ilkley LS29 8PT, United Kingdom of Great Britain and Northern Ireland
3. Medical Hospital I, Endocrinology and Diabetes Department, Ruhr University of Bochum, Bochum, Germany
4. Ruhr Center for Rare Diseases (CeSER), Bochum, Germany