Validación Original GAD-7: Spitzer, R. L., Kroenke, K., Williams, J. B., & Löwe, B. (2006). A brief measure for assessing generalized anxiety disorder: the GAD-7. Archives of Internal Medicine, 166(10), 1092–1097. DOI: 10.1001/archinte.166.10.1092
Rendimiento Diagnóstico y Metanálisis: Plummer, F., Manea, L., Trepel, D., & McMillan, D. (2016). Screening for anxiety disorders with the GAD-7 and GAD-2: a systematic review and diagnostic metaanalysis. General Hospital Psychiatry, 39, 24–31. DOI: 10.1016/j.genhosppsych.2015.11.005
Validación en Atención Primaria y Trastornos Comórbidos: Kroenke, K., Spitzer, R. L., Williams, J. B., Monahan, P. O., & Löwe, B. (2007). Anxiety disorders in primary care: prevalence, impairment, comorbidity, and detection. Annals of Internal Medicine, 146(5), 317–325. DOI: 10.7326/0003-4819-146-5-200703060-00004