LNCaP xenograft tumor-bearing mice (two per compound) were injected intravenously via the tail vein as a bolus injection of 7.03–7.77 MBq (190–210 μCi) of the tracer ([18F]RPS series), 5.5–6.5 MBq (150–175 μCi) [18F]DCFPyL or 5.5 MBq (150 μCi) [68Ga]Ga-PSMA-HBED-CC. Here, FOLH1 is linked to neoplasm.