Corrigendum: NPM1 Is a Prognostic Biomarker Involved in Immune Infiltration of Lung Adenocarcinoma and Associated With m6A Modification and Glycolysis - Liu, Xu-Sheng; Zhou, Lu-Meng; Yuan, Ling-Ling; Gao, Yan; Kui, Xue-Yan; Liu, Xiao-Yu; Pei, Zhi-Jun (Frontiers in Immunology, 2021)