FOLH1 and neoplasm: High specific tumor uptake of 68Ga-PSMA-11 was shown in MDA-MB-231 xenografts with T/B ratio of 43.3 ± 0.9 at 30 min p. i., while tumor uptake in the control MCF-7 xenografts was negligible, with T/B ratio of 1.1 ± 0.1 (Figure 6).