This page does not provide medical advice, diagnosis, prescriptions, or instructions for using unapproved products.
Reporting an error
Readers, clinicians, researchers, and regulators may report factual errors, outdated status information, broken sources, or unclear wording through the contact address on this site. Include the page URL and supporting source.
Our process
The editor checks the original source, relevant current evidence, and the practical impact of the issue. Safety-critical or regulatory errors receive priority. We correct confirmed errors promptly and update the page’s review date.
Correction notes
Material changes that alter a conclusion, safety statement, or regulatory description receive a visible correction note. Minor grammar or formatting edits do not.
Sources and further reading
This policy page describes our operating standard and does not make external medical claims.
This page was checked for evidence labels, regulatory wording, and unsupported health claims. Clinical expert review will be identified by name when available.