human nonhuman physiology Humans 161 Animals 150 animal 148 metabolism 93 controlled study 89 priority journal 83 article 77 mouse 58 unclassified drug 51 animal cell 50 Article 48 Mice 46 animal experiment 44 genetics 43 female 41 human cell 37 male 35 Review 34 Female 33 adult 33 drug effect 31 animal model 29 chemistry 28 Male 27 signal transduction 27 rat 25 protein expression 24