Doctors who qualified outside of the UK currently make up around 42 per cent of the workforce Sign up for our free Health Check email to receive exclusive analysis on the week in health Get our free Health Check email Get our free Health Check email Email * SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our Privacy notice The NHS could be left with "huge holes" in its medical workforce, a medical regulator has warned, as foreign doctors