The most junior doctors working in the paediatric unit at Bedford hospital have been withdrawn after they raised concerns about inadequate levels of senior supervision.
The hospital says without the trainees as part of its workforce, it could not safely provide all of its paediatric services and is making changes to the way it delivers children's services.
The town's MPs Alistair Burt and Richard Fuller have called for an enquiry, but say there is no need for concern over patient safety.
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