Sources and purpose
We prefer original publications and the organisations responsible for guidance, data or research tools. The guides link to these sources where they are discussed. Resource introductions explain what a source is useful for and identify its publisher.
A topic guide is an educational introduction. A resource introduction points to external work. Neither is presented as a formal ENS clinical guideline or institutional position statement.
Explanations and examples
We explain unfamiliar terms, keep comparisons tied to the population and method, and identify uncertainty where it changes the meaning of a finding. Hypothetical exercises are described as such. Images illustrate subjects and do not establish a person's affiliation with ENS.
Publication and update labels refer to the website text. A date alone is not a claim that an article has undergone independent scientific peer review.
Contributing material
Include the intended audience, original sources and any interests relevant to your contribution. Tell us who prepared the material and whether permission is needed to reproduce text, figures or recordings. For teaching material, describe what a reader should understand or be able to do afterwards.
Suggest a correction
Send the page URL, the passage concerned and the evidence supporting your suggested change. For a broken link, include the replacement address if you have it. Please distinguish a factual correction from a difference in interpretation so that the issue is clear.