title: Ovulation in Microtus pennsylvanicus in a laboratory environment.
mesh_terms: D000818:Animals; D002940:Circadian Rhythm; D003338:Corpus Luteum; D004777:Environment; D004971:Estrus; D005260:Female; D008297:Male; D009929:Organ Size; D010053:Ovary; D010060:Ovulation; D011247:Pregnancy; D012377:Rodentia; D014649:Vas Deferens / Q000601:surgery