St George's, University of London Users:

We are currently experiencing technical issues with Shibboleth authentication. As a result some users will, temporarily, be unable to access JAMA Network websites. We are working with our platform provider, Silverchair Information Systems, to restore the Shibboleth functionality. IP-based access is not affected and will still work. In the meantime, those wishing to access via Shibboleth can use the following link:

We apologize for the inconvenience and will inform you as soon as Shibboleth is up and running again.

Please contact us at support@jamanetwork.com if you have any questions or concerns.

The JAMA Network