NR2F2 and cancer: In this study, LncRNA NR2F2‐AS1 was found to be abnormally expressed based on the previous analysis of lncRNAs microarray among NSCLC tissues.21 NR2F2, also named COUP‐TFII, belongs to the nuclear receptor family and has been reported to be important in the treatment and prevention of cancers.22, 23 So far, the function of LncRNA NR2F2‐AS1 in NSCLC has not been explored.