animal controlled study priority journal Animals 529 nonhuman 521 metabolism 381 Article 310 animal experiment 291 animal cell 284 mouse 259 physiology 232 animal tissue 224 Mice 223 article 223 male 215 female 203 Male 183 genetics 180 Female 169 unclassified drug 147 drug effects 139 protein expression 138 human 137 drug effect 136 animal model 135 Humans 133 signal transduction 101 cytology 98 chemistry 97 rat 96