He, Longhai, and Yue Zhou. “Evaluation of Increased MicroRNA-21 in the Serum of Patients With Cardia Cancer: MiR-21 in Serum of Cardia Cancer Patients”. Cellular and Molecular Biology 68, no. 4 (April 30, 2022): 60–65. Accessed November 22, 2024. https://cellmolbiol.org/index.php/CMB/article/view/4366.