ETS1 and neoplasm: In a group of PTC patients with more aggressive clinical features (higher PTC grade, invasion or higher levels of tumor infiltration), ETS1 levels were higher in the miR-203a-3p high expressed group than in the miR-203a-3p low expressing one, whereas in non-aggressive PTCs, median ETS1 expression was lower (or equal) in the miR-203a-3p high expressed group than in the miR-203a-3p low expressing group.