Ovulation after fifty.
D000375:Aging; D003338:Corpus Luteum / Q000166:cytology; D004717:Endometrium / Q000502:physiology*; D005260:Female; D006801:Humans; D008593:Menopause; D008875:Middle Aged; D006080:Ovarian Follicle / Q000166:cytology; D010053:Ovary / Q000502:physiology*; D010060:Ovulation; D011247:Pregnancy; D011372:Progestins / Q000494:pharmacology
D011372:Progestins