Exosomal circCNOT6L Regulates Astrocyte Apoptotic Signals Induced by Hypoxia Exposure Through miR99a-5p/SERPINE1 and Alleviates Ischemic Stroke Injury. - He W; Gu L; Yang J; Zhang R; Long J; Peng W; Liang B; Zhu L; Lv M; Nan A; Su L (Molecular neurobiology, 2023)