controlled study female metabolism Female 261 nonhuman 230 animal 226 Animals 224 priority journal 200 Article 178 animal experiment 155 human 153 Humans 147 animal cell 134 article 130 animal tissue 126 male 126 mouse 122 protein expression 117 genetics 111 Mice 108 physiology 105 drug effects 97 Male 96 adult 96 animal model 89 human cell 88 unclassified drug 87 pathology 79 in vitro study 77 cytology 72