TY - GEN AU - Hayday,Adrian C AU - Spencer,Jo TI - Barrier immunity SN - 1096-3618 PY - 2009///1209 KW - Adaptive Immunity KW - Animals KW - Autoantigens KW - immunology KW - Dendritic Cells KW - Humans KW - Immunity, Cellular KW - Immunity, Innate KW - Infections KW - Intestinal Mucosa KW - Receptors, Antigen, T-Cell, gamma-delta KW - Receptors, NK Cell Lectin-Like KW - Respiratory Mucosa KW - Stress, Physiological KW - T-Lymphocytes KW - Toll-Like Receptors N1 - Publication Type: Editorial; Introductory Journal Article UR - https://doi.org/10.1016/j.smim.2009.04.003 ER -