Animals animal 69 immunology 47 mouse 47 Mice 44 nonhuman 37 Article 36 human 35 metabolism 32 Humans 28 controlled study 28 genetics 23 animal experiment 22 female 22 Female 18 animal model 17 male 17 Male 15 animal cell 15 CD8+ T lymphocyte 14 animal tissue 14 unclassified drug 14 chemistry 13 pathology 13 drug effect 12 Disease Models, Animal 11 disease model 11 inflammation 11 protein expression 11 tumor necrosis factor 10