FOLH1 and Familial prostate cancer: Both [161Tb]Tb-PSMA-617 and [149Tb]Tb-PSMA-617 have been shown to be more effective than [177Lu]Lu-PSMA-617 for prostate cancer in mice 189,190, and 161Tb delivers higher absorbed doses to water density spheres than 67Cu, 47Sc, and 177Lu in MC simulations 191.