FOLH1 and gastric carcinoma: Even more compelling was the general observation that tumors with a FOLH1 expression fold change of two or greater relative to their matched normal tissue were previously observed to have favorable uptake and tumor-to-background ratio, including bladder (BLCA), thyroid (THCA), uterine (UCS, UCEC), ovarian (OV), and stomach carcinomas (STAD) [4,7,8,9,10,11,12,13,14,15,16].