Oxford University Hospitals NHS Foundation Trust said it would remove sections of cladding at the Children's Hospital and the Churchill Hospital, according to an article on the BBC website.
Hourly fire safety checks will also be carried out at the Children's Hospital until the work is done.
The facades of the Children's Hospital, based at the John Radcliffe Hospital, "were not built with the cladding specified", the trust discovered.
Cladding will also be examined, removed and replaced at the Cancer and Haematology Centre at the Churchill.
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