animal Animals 1,651 article 1,019 metabolism 766 nonhuman 745 physiology 728 male 546 female 532 Male 512 controlled study 508 Female 485 genetics 434 human 406 priority journal 404 Article 392 Humans 360 mouse 327 Argentina 326 animal experiment 306 Mice 296 animal cell 279 chemistry 269 drug effect 251 growth, development and aging 235 unclassified drug 217 rat 209 animal tissue 205 Animal 203 Rats 194 drug effects 189