Dewan, Mohit A <br/><br/>
False-negative apraclonidine testing in acute Horner syndrome.  [electronic resource] 

 -  Canadian journal of ophthalmology. Journal canadien d'ophtalmologie  Feb 2009 
 - 109-10 p.  digital 
<br/><br/> Publication Type: Case Reports; Letter 
<br/><br/><label>ISSN: </label>0008-4182 
<br/><br/><label>Standard No.: </label>10.3129/i08-162  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Acute Disease<br/>Adrenergic alpha-Agonists<br/>Anisocoria--physiopathology<br/>Carotid Artery, Internal, Dissection--diagnosis<br/>Clonidine--analogs & derivatives<br/>Cocaine<br/>False Negative Reactions<br/>Female<br/>Horner Syndrome--diagnosis<br/>Humans<br/>Magnetic Resonance Imaging<br/>Middle Aged<br/>Predictive Value of Tests<br/>Pupil--drug effects<br/>Vasoconstrictor Agents