Corrigendum: High Circulating Sonic Hedgehog Protein Is Associated With Poor Outcome in EGFR-Mutated Advanced NSCLC Treated With Tyrosine Kinase Inhibitors - Takam Kamga, Paul; Swalduz, Aurélie; Costantini, Adrien; Julié, Catherine; Emile, Jean-François; Pérol, Maurice; Avrillon, Virginie; Ortiz-Cuaran, Sandra; De Saintigny, Pierre; Giroux-Leprieur, Etienne (Frontiers in Oncology, 2022)