title: Correspondence: Immobilon: Some comments on its action.
mesh_terms: D000075:Acepromazine / Q000494:pharmacology*; D000818:Animals; D004285:Dogs; D005048:Etorphine / Q000494:pharmacology*; D006736:Horses; D007103:Immobilization; D009019:Morphinans / Q000494:pharmacology*
chemical_list: D009019:Morphinans; D005048:Etorphine; D000075:Acepromazine