Corrigendum: Circulating T cell activation and exhaustion markers are associated with radiation pneumonitis and poor survival in non-small-cell lung cancer - Berg, Janna; Halvorsen, Ann Rita; Bengtson, May-Bente; Lindberg, Morten; Halvorsen, Bente; Aukrust, Pål; Helland, Åslaug; Ueland, Thor (Frontiers in Immunology, 2022)