title: Uncoupling of vaginal opening and the first ovulation--an indication of an alteration in the pituitary-gonadal axis.
mesh_terms: D000818:Animals; D000830:Animals, Laboratory / Q000502:physiology; D001835:Body Weight; D004777:Environment; D004958:Estradiol / Q000097:blood; D004971:Estrus; D005260:Female; D005640:Follicle Stimulating Hormone / Q000097:blood; D007986:Luteinizing Hormone / Q000097:blood; D008670:Metals; D009929:Organ Size; D010053:Ovary / Q000033:anatomy & histology / Q000166:cytology; D010060:Ovulation; D010969:Plastics; D011247:Pregnancy; D011374:Progesterone / Q000097:blood; D051381:Rats; D012741:Sexual Maturation; D014621:Vagina / Q000033:anatomy & histology*
chemical_list: D008670:Metals; D010969:Plastics; D011374:Progesterone; D004958:Estradiol; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone