Corrigendum: Functional Characterisation and Analysis of the Soluble NKG2D Ligand Repertoire Detected in Umbilical Cord Blood Plasma - Cox, Steven T.; Danby, Robert; Hernandez, Diana; Laza-Briviesca, Raquel; Pearson, Hayley; Madrigal, J. Alejandro; Saudemont, Aurore (Frontiers in Immunology, 2020)