FOLH1 and neoplasm: In these experiments, PSMA-NB showed significantly higher percentage of nonlinear signal in the tumor core compared to both NB and Lumason (Figure S5, 25.2 ± 1.5%, 13.9 ± 5.1%, and 0.4 ± 0.4 % respectively, p < 0.05) at the experiment end point.