Public research resources
Start with the study and publication catalogue. These pages provide public descriptions and source links; they do not provide access to participant-level data.
Restricted systems
Authorized research work uses separate systems and access rules. This demonstration does not link to or modify restricted data platforms. It does not create participant accounts or collect datasets.
Request the correct route
Use Research-system support in the contact form to describe the system and the access question. Do not include passwords, participant identifiers or a data extract.