LINC00632 and esophageal squamous cell carcinoma: Circular RNA circ_0001946 (also known as CDR1as and CiRS-7) that derives from chrX:139865339–139866824 is involved in the progression of multiple cancer types, such as esophageal squamous cell cancer (Fan et al., 2019), colorectal cancer (Deng et al., 2020), lung adenocarcinoma (Yao et al., 2019), and glioblastoma (GBM) (Li and Diao, 2019).