Lucchetti, Giancarlo <br/><br/>
Generalized anxiety disorder, subthreshold anxiety and anxiety symptoms in primary headache.  [electronic resource] 

 -  Psychiatry and clinical neurosciences  Jan 2013 
 - 41-9 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>1440-1819 
<br/><br/><label>Standard No.: </label>10.1111/j.1440-1819.2012.02405.x  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adolescent<br/>Adult<br/>Anxiety--epidemiology<br/>Anxiety Disorders--epidemiology<br/>Brazil--epidemiology<br/>Comorbidity<br/>Cross-Sectional Studies<br/>Female<br/>Headache--epidemiology<br/>Headache Disorders--epidemiology<br/>Humans<br/>Male<br/>Middle Aged<br/>Poverty<br/>Prevalence