title: Letter: Use of Immobilon for parturition in a mare.
mesh_terms: D000075:Acepromazine / Q000494:pharmacology*; D000818:Animals; D004338:Drug Combinations; D005260:Female; D006736:Horses; D007743:Labor, Obstetric / Q000187:drug effects*; D009019:Morphinans / Q000494:pharmacology*; D011247:Pregnancy
chemical_list: D004338:Drug Combinations; D009019:Morphinans; D000075:Acepromazine