Trends in the prevalence of social phobia in the United States: A synthetic cohort analysis of changes over four decades.
European Psychiatry
http://www.ncbi.nlm.nih.gov/pubmed/?term=Trends%20in%20the%20prevalence%20of%20social%20phobia%20in%20the%20United%20States%3A%20A%20synthetic%20cohort%20analysis%20of%20changes%20over%20four%20decades.