Article female human Humans 200 controlled study 192 Female 182 male 166 adult 162 Male 130 priority journal 120 nonhuman 92 metabolism 90 Adult 80 Animals 76 animal 74 human cell 64 genetics 62 major clinical study 62 middle aged 62 protein expression 62 Middle Aged 54 Argentina 48 physiology 48 Young Adult 40 animal cell 40 animal experiment 40 human tissue 40 in vitro study 40 pathology 40 young adult 40