Boyd, D R <br/><br/>
Trauma centers: classification.  [electronic resource] 

 -  Emergency medical services   
 - 79-81 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0094-6575 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trauma Centers--classification<br/>United States