Urinary estrogens as an index for estimating the time of ovulation.
D000818:Animals; D000830:Animals, Laboratory; D001947:Breeding; D004967:Estrogens / Q000652:urine*; D005260:Female; D000882:Haplorhini; D007564:Japan; D008251:Macaca; D008598:Menstruation; D010060:Ovulation; D011247:Pregnancy; D012621:Seasons
D004967:Estrogens