LINC00665 and gastric cancer: SNHG16, LIN01128, RP11-834C11.4(LINC02381) and LINC00665 were all verified to be involved in various cancers, such as osteosarcoma (Yao and Chen, 2020), cervical cancer (Chen et al., 2020), breast cancer (Ji et al., 2020), gastric cancer (Yang et al., 2020), and hepatic cancer (Ding et al., 2020).