"authors","title","secondary title or journal name","volume","issue no.","start page","end page","publisher","publication year" "Kubarych, T.S.; Aggen, S.H.; Kendler, K.S.; Neale, M.C.","Assessment of generalized anxiety disorder diagnostic criteria in the National Comorbidity Survey and Virginia Adult Twin Study of Psychiatric and Substance Use Disorders","Psychological Assessment","20","3","206","216","","2008"