The Shibboleth login option has disappeared from the BMJ.com webiste. The BMJ are currently working on fixing the problem, it should be fixed by the end of the day or early tomorrow.
If you are offsite and need to access BMJ journals
Go to: http://journals.bmj.com
Login in via Shibboleth from this site to gain access to SGUL’s BMJ Content.
Select “Login via Athens or your home institution” (on the right hand side sign in box).
Select UK Access Management Federation – St George’s University of London – the Shibboleth screen should then load.