A systematic review and meta-analysis of animal studies investigating the relationship between serum antibody, T lymphocytes, and respiratory syncytial virus disease by McGinley, J, Thwaites, R, Brebner, W, Greenan-Barrett, L, Aerssens, J, Öner, D, Bont, L, Wildenbeest, J, Martinón-Torres, F, Nair, H, Pollard, AJ, Openshaw, P, Drysdale, S