TFF1 and breast carcinoma: Other circRNAs also mediate breast cancer cell development and progression, including hsa_circ_001783, hsa_circRNA_002178, hsa_circRPPH1_015, circ_0007255, circ‐TFF1, hsa_circ_0000515, and hsa_circ_0068033, via sponging miR-200c-3p, miR-328-3p, miR-326, miR-335-5p, miR-326, miR-296-5p, and miR-659, respectively 104-110.