title: Is it time to retire the use of intrauterine glass balls for estrus suppression in mares?
authors.forename: Dirk K
authors.initials: DK
authors.lastname: Vanderwall
mesh_terms: D000822:Animal Husbandry; D000818:Animals; D004973:Estrus Synchronization; D005260:Female; D006736:Horses / Q000502:physiology*; D007434:Intrauterine Devices / Q000009:adverse effects / Q000662:veterinary*