Repositorios 517 Catálogos de Bibliotecas 344 Revistas 31

animal experiment 2,813 nonhuman 2,478 article 2,025 controlled study 1,988 Animals 1,714 priority journal 1,668 male 1,211 Male 1,139 female 1,071 animal tissue 1,049 Female 1,006 mouse 1,002 rat 995 animal model 927 animal cell 844 Mice 815 Rats 815 animal 632 Animal 542 Article 497 unclassified drug 496 human 480 protein expression 476 metabolism 446 Humans 420 Animalia 416 Support, Non-U.S. Gov't 404 in vitro study 394 physiology 340 enzyme activity 326