animal male Male 994 Animals 974 female 637 Female 577 article 541 physiology 489 nonhuman 450 metabolism 393 controlled study 353 animal experiment 296 Article 286 genetics 267 priority journal 247 Argentina 227 mouse 196 animal tissue 194 growth, development and aging 183 Mice 172 adult 169 human 145 animal cell 141 drug effects 137 classification 136 drug effect 131 rat 126 anatomy and histology 118 Humans 115 histology 113