title: The utility of 0.5% apraclonidine in the diagnosis of horner syndrome.
authors.forename: Sandra M
authors.initials: SM
authors.lastname: Brown
mesh_terms: D000316:Adrenergic alpha-Agonists; D015875:Anisocoria / Q000175:diagnosis; D003000:Clonidine / Q000031:analogs & derivatives*; D006732:Horner Syndrome / Q000175:diagnosis*; D006801:Humans; D009883:Ophthalmic Solutions
chemical_list: D000316:Adrenergic alpha-Agonists; D009883:Ophthalmic Solutions; C016986:apraclonidine; D003000:Clonidine