title: Urinary estrogen levels during the menstrual cycle of the orangutan.
mesh_terms: D000818:Animals; D004958:Estradiol / Q000652:urine; D004964:Estriol / Q000652:urine; D004967:Estrogens / Q000652:urine*; D004970:Estrone / Q000652:urine; D005260:Female; D015186:Hominidae / Q000652:urine*; D008598:Menstruation; D010060:Ovulation; D011148:Pongo pygmaeus / Q000502:physiology / Q000652:urine*
chemical_list: D004967:Estrogens; D004970:Estrone; D004958:Estradiol; D004964:Estriol