article physiology animal 768 Animals 726 metabolism 476 nonhuman 318 male 316 Male 302 controlled study 296 female 296 human 272 Female 268 genetics 258 Humans 250 drug effect 240 priority journal 238 Argentina 166 growth, development and aging 154 chemistry 134 Animalia 116 animal experiment 114 comparative study 110 cytology 110 animal cell 108 mouse 106 histology 102 unclassified drug 102 Mice 98 time 96 Time Factors 92