Towards standardization of 18F-FET PET imaging: do we need a consistent method of background activity assessment? oleh Marcus Unterrainer, Franziska Vettermann, Matthias Brendel, Adrien Holzgreve, Michael Lifschitz, Matthias Zähringer, Bogdana Suchorska, Vera Wenter, Ben M. Illigens, Peter Bartenstein, Nathalie L. Albert