Anaissie and colleagues1 need to be congratulated on an impressive review of reported outbreaks of nosocomial illness linked to hospital water supplies. However, their conclusions about the burden of nosocomial disease due to water supplies are severely flawed. The authors' review exhibits several sources of bias that together would lead to substantial overestimation of disease burden.
The first source of bias derives from their search strategy that would detect articles that have found an association with water in preference to ones that have not. For example, they do not cite articles that are highly relevant to this debate but which do not support their preferred conclusion.2- 3
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Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature
Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal
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