guidelines

He has come across patients that do not fit the recommended guidelines who have received private prescriptions.

"If sentencing guidelines of whatever kind were to be dictated in any way by Ministers of the Crown, this principle would be breached."

Qatar Airways said it followed appropriate guidelines and apologised for "any inconvenience or distress this incident may have caused".

The group told the BBC they wanted better guidelines set out from institutions on AI, and its use, to keep everyone on a level playing field.

The current guidelines were developed at a time when many mothers had immunity from measles infections.