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Benn CS, Balde A, George E, Kidd M, Whittle H, Lisse IM, Aaby P.Benn CS, et al.Lancet. 2002 Apr 13;359(9314):1313-4. doi: 10.1016/S0140-6736(02)08274-0.Lancet. 2002.PMID: 11965280Clinical Trial.