Contribute & corrections
This directory is better when the field checks it. If you spot an error, know of a study that should be cited, or use a tool that isn’t here, please tell us. Accuracy matters more than appearances.
How submissions are handled
Every correction and suggested study is checked against a primary or authoritative source before any change is made. Accepted material changes are recorded in the public updates and correction history. We read everything, but can’t promise inclusion — and this channel is for the directory, not for clinical advice about a patient.
Flag an error
A wrong citation, a mis-described tool, an out-of-date figure — anything that looks off.
Report a correctionSuggest a study or review
A validation study, meta-analysis, or real-world report that should be cited on a tool.
Suggest a studyGeneral feedback instead? Send a note.
Clarify an official source or reproduction permission
If you own or steward an instrument, please tell us the preferred official link, current version, access conditions, required attribution, training route and whether any public-web reproduction is permitted. A link to a free form is not treated as permission to republish it. A credible takedown or correction request will be checked promptly; disputed third-party material can be removed temporarily while the evidence is reviewed.
Contact about access or rightsA living, versioned resource
The dataset is versioned and links are reviewed at least twice yearly. Material changes — including accepted corrections and additions — are recorded in the public change history. See Methodology for the update policy.
Your privacy
Your email is used only to handle and reply to your submission and is not added to a marketing list. Please don’t send confidential or patient-identifiable information. See the Privacy notice. Original text that you own and contribute may be added under the site’s CC BY 4.0 licence, with credit if you wish. Do not submit third-party forms, item wording, article text or images unless you have authority to license them.