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Fig. 1 | BMC Medicine

Fig. 1

From: Consistency and sources of divergence in recommendations on screening with questionnaires for presently experienced health problems or symptoms: a comparison of recommendations from the Canadian Task Force on Preventive Health Care, UK National Screening Committee, and US Preventive Services Task Force

Fig. 1

Flow of guideline and recommendation statements reviewed and included, randomized controlled trials described in the statements, and results of randomized controlled trials that were tests of questionnaire-based screening interventions

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