In a separate study, Xie et al. found that the tumor uptake of [18F]AlF-NOTA-JR11 was significantly lower (9.02 ± 5.9% ID/g) compared to [68Ga]Ga-DOTATATE (31.35 ± 5.90% ID/g) in mice with HEK293-SSTR2 tumors [26]. The gene discussed is SSTR2; the disease is neoplasm.