animal controlled study metabolism nonhuman Animals 611 priority journal 373 Article 370 animal experiment 342 animal cell 331 mouse 291 animal tissue 274 physiology 248 Mice 247 article 243 female 222 genetics 218 male 213 unclassified drug 207 protein expression 187 Female 184 Male 181 human 176 Humans 172 drug effects 169 animal model 158 drug effect 131 rat 117 signal transduction 116 pathology 113 chemistry 112