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Schoepfer, Alain M; Flogerzi, Beatrice; Fallegger, Silvia; Schaffer, Thomas; Mueller, Stefan; Nicod, Laurent; Seibold, Frank (2008). Comparison of interferon-gamma release assay versus tuberculin skin test for tuberculosis screening in inflammatory bowel disease. American journal of gastroenterology, 103(11), pp. 2799-806. New York, N.Y.: Nature 10.1111/j.1572-0241.2008.02050.x
