FOLR1 and neoplasm: The median (range) percentage of positive tumor cells was 94 % (5–100) for E-cadherin, 78 % (13–100) for EMA, 61 % (11–100) for Her2/neu, 56 % (2–100) for αvβ6 integrin, 54 % (0–100) for EpCAM, 23 % (0–100) for CEA, and 3 % (0–100) for FR-α.