Female 281 female 267 nonhuman 263 Animals 235 article 230 Ovary 202 priority journal 184 controlled study 182 rat 144 ovary 142 animal experiment 132 animal 125 Rats 123 animal cell 120 animal tissue 108 Rats, Sprague-Dawley 93 metabolism 81 estradiol 78 protein expression 76 progesterone 75 ovary follicle 73 Male 71 male 67 Ovarian Follicle 66 human 60 Animalia 59 Humans 58 apoptosis 57 Reproduction 56 physiology 56