The British Medical Association (BMA) is a registered trade union for doctors in the United Kingdom. It does not regulate or certify doctors, a responsibility which lies with the General Medical Council. The BMA has a range of representative and scientific committees and is recognised by National Health Service (NHS) employers alongside the Hospital Consultants and Specialists Association as one of two national contract negotiators for doctors.

The A4200 is a major thoroughfare in central London. It runs between the A4 at Aldwych, to the A400 Hampstead Road/Camden High Street, at Mornington Crescent tube station, via Holborn, Bloomsbury, Euston and Somerstown.