A 100 million pound Cancer Centre - which patients have helped to design - has opened at University College Hospital.
Those running the Macmillan Cancer Centre say it will redefine the way patients are treated, focusing on all aspects of their outpatient care.
They will also have the opportunity to take part in leading-edge clinical trials.
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Hundreds of passengers were ordered to leave the terminal building and flights grounded after passengers suffered difficulties breathing.
Council leaders today called on the government to provide extra money to help resettle the youngsters in the capital.
An eyewitness said: "It was very unnerving. It was just after 12pm and there were suddenly police vans and cars everywhere."