“…Indeed, the Scopus database (accessed 13 April, 2015) indicates that the paper has been cited in 481 subsequent documents, with a highly informal search of the same database (accessed 13 April, 2015) using the search terms [("transdiagnostic" or "unified") and "anxiety"] yielding a growth Beyond the measureable impact, there has been a renewed interest in alternative nosological structures of NAS beyond the current DSM-IV and DSM-5 frameworks, and an emergence of broad-spectrum or transdiagnostic interventions for anxiety disorder specifically (e.g., Norton, 2012b) or NAS generally (e.g., Barlow et al, 2011) that have been developed in individual (e.g., McManus et al, 2014;Roy-Byrne et al, 2010;Teng et al, 2008), group (e.g., Dwyer et al, 2013;Erickson et al, 2007;Schmidt et al, 2012), and technology-delivered formats (e.g., Johnston, Titov, Andrews, Dear, & Spence, 2013), and have been tailored for populations including primary care patients (Ejeby et al, 2014;Roy-Byrne et al, 2010), U.S. military veterans (e.g., Gros, 2014), and specific cultural groups (e.g., de Ornelas Maia et al, 2013Lotfi et al, 2014;Mohammadi et al, 2014;Sanchez-Garcia, 2004). Meta-analyses (Norton & Philipp, 2008;Reinholt & Krogh, 2014) of the emerging evidence base for these interventions have converged on the following conclusion: clearly continued research is necessary, although remarkable empirical support has been generated for these propitious approaches to the treatment of our most prevalent and frequently comorbid psychological disorders.…”