FOLH1 and neoplasm: In studies with C4-2 tumour-bearing mice, activities of 15 and 30 MBq of 177Lu-PSMA-617 improved median survival with TIs of 1.7 and 3.1 (radiosensitive models, Table S1) [60,61], similar to TIs of 1.5–2.7 for 0.25–0.40 MBq of 212Pb-NG001 in the present study (radioresistant model).