For each of the questions below, HEN provides a synthesis of the best available evidence, including a summary of the main findings and policy options.
The evidence reports and summaries published on this web site are commissioned works and the contents are the responsibility of the authors. They do not necessarily reflect the official policies of WHO/Europe or HEN. All reports undergo rigorous external review, as well as internal review. The summaries of network members' reports are verified by the authoring agency.
