Corrigendum: Ultrasound-based deep learning using the VGGNet model for the differentiation of benign and malignant thyroid nodules: A meta-analysis - Zhu, Pei-Shan; Zhang, Yu-Rui; Ren, Jia-Yu; Li, Qiao-Li; Chen, Ming; Sang, Tian; Li, Wen-Xiao; Li, Jun; Cui, Xin-Wu (Frontiers in Oncology, 2022)