FOLH1 and neoplasm: Tumor/kidney ratios (F(2,18) = 172.7; p < 0.0001) were the highest for [18F]F-JK-PSMA-7 after 2 h and 4 h, and significantly higher compared to [89Zr]Zr-PSMA-DFO, while [68Ga]Ga-PSMA-11 tumor/kidney ratios were significantly lower.