title: Duration of proestrus, oestrus and vulval bleeding in the beagle bitch.
mesh_terms: D000818:Animals; D004285:Dogs / Q000502:physiology*; D004971:Estrus; D005260:Female; D006470:Hemorrhage; D011247:Pregnancy; D013997:Time Factors; D014626:Vaginal Smears; D014844:Vulva / Q000502:physiology*