ETV1 and gastrointestinal stromal tumor: We only found that circ_0069765 was significantly upregulated in the GIST-T1 and GIST-882 cells and that circ_0079471 and its host gene ETV1 were overexpressed in the GIST-T1 cells compared to the normal stomach stromal tissue by a qRT-PCR analysis (all p < 0.05) (Figure S4).