Animals 66 Mice animal cell 66 nonhuman 66 mouse 65 animal 61 controlled study 58 Article 54 animal experiment 42 metabolism 37 animal tissue 34 animal model 31 human 29 male 28 Humans 27 female 23 unclassified drug 23 genetics 17 in vitro study 17 protein expression 17 drug effect 16 chemistry 15 procedures 15 human cell 14 in vivo study 14 Male 13 phenotype 13 Mice, Inbred C57BL 12 article 12 cell proliferation 12