FOLH1 and neoplasm: To guarantee the reproducibility of the present data, we carefully controlled the experimental factors that may affect inter-subject error, such as the injected radioactivity and purity of [68Ga]PSMA-11 (3.10 ± 0.13 MBq and > 99%, respectively) and the tumor environment defined by the size (calipered size = 0.18 ± 0.03 cc).