Seasonal incidence and fetal age in equine virus abortion.
D000028:Abortion, Induced; D000818:Animals; D005260:Female; D005865:Gestational Age; D006734:Horse Diseases; D006736:Horses; D015994:Incidence; D011247:Pregnancy; D012621:Seasons; D014777:Virus Diseases
ABORTION; HORSES/diseases; VIRUS DISEASES