Retraction: Y. Chen, Y. Li, and H. Gao, "Long Noncoding RNA CASC9 Promotes the Proliferation and Metastasis of Papillary Thyroid Cancer Via Sponging miR-488-3p," Cancer Medicine 9, no. 5 (2020): 1830-1841. The gene discussed is CASC9; the disease is thyroid gland papillary carcinoma.