adult controlled study nonhuman Animals 186 Article 180 male 173 female 165 animal 159 animal experiment 150 priority journal 145 Male 129 Female 122 animal tissue 115 human 92 metabolism 89 physiology 81 animal cell 80 Humans 78 article 70 mouse 69 genetics 55 animal model 54 protein expression 52 Mice 49 drug effects 48 unclassified drug 48 Adult 34 Argentina 34 gene expression 33 human cell 30