title: Changes in the ovarian follicle population of mice aged 16 to 20 days.
mesh_terms: D000367:Age Factors; D000818:Animals; D005260:Female; D051379:Mice; D006080:Ovarian Follicle / Q000033:anatomy & histology* / Q000166:cytology; D010053:Ovary / Q000254:growth & development*