Fig. 2
From: Progression of intervention-focused research for Gulf War illness
Literature review flow diagram for published clinical trials of Gulf War illness interventions: Methods used identify relevant publications related to Gulf War Illness research. Search keywords: Gulf War illness, Gulf War syndrome, medically unexplained symptoms, chronic multisymptom illness, Gulf War, and medically unexplained illness. a In addition to use of keywords, the PubMed search results were filtered by limiting article types to clinical trial. b Cognitive behavior therapy and exercise therapy were investigate in the same study. Thus the total number of fully reviewed studies adds up to 7. GWI. Gulf War illness; QuERI. Quality enhancement research Initiative; GWIRP. GWI research program; CDMRP. Congressionally directed medical research programs; GWVs. Gulf War veterans