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Ahmed QA, Memish ZA, Allegranzi B, Pittet D; WHO Global Patient Safety Challenge.Ahmed QA, et al. Among authors: pittet d.Lancet. 2006 Mar 25;367(9515):1025-7. doi: 10.1016/S0140-6736(06)68431-6.Lancet. 2006.PMID: 16564366No abstract available.