Burgos-Vargas, Rubén <br/><br/>
Undifferentiated spondyloarthritis: a global perspective.  [electronic resource] 

 -  Current rheumatology reports  Oct 2007 
 - 361-6 p.  digital 
<br/><br/> Publication Type: Journal Article; Review 
<br/><br/><label>ISSN: </label>1523-3774 
<br/><br/><label>Standard No.: </label>10.1007/s11926-007-0058-2  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adult<br/>Child<br/>Disease Progression<br/>Humans<br/>Prognosis<br/>Prospective Studies<br/>Retrospective Studies<br/>Spondylarthritis--classification<br/>Spondylitis, Ankylosing--diagnosis