FOLH1 and neoplasm: As the molar activity has a large influence on the tumor uptake, both radiotracers were administered in comparable MA values (61.6 ± 15.8 MBq/nmol for [18F]AlF-PSMA-11 and 53.4 ± 16.4 MBq/nmol for [18F]PSMA-1007).