Corrigendum: LncRNA NBR2 Inhibits the Malignancy of Thyroid Cancer, Associated With Enhancing the AMPK Signaling - Yang, Wen; Zheng, Zhikun; Yi, Pengfei; Wang, Shi; Zhang, Ning; Ming, Jie; Tan, Jie; Guo, Hui (Frontiers in Oncology, 2021)