The primary findings demonstrate that [68 Ga]Ga-PSMA-1-DOTA exhibits much lower uptake in the salivary glands and kidneys compared to [68 Ga]Ga-PSMA-11 and [68 Ga]Ga-PSMA I&T as observed in both mouse models (Figs. 3 & S6, Table 1), not influenced by the “tumor sink” effect (Figure S5), and a single human patient. This evidence concerns the gene FOLH1 and neoplasm.