"The Royal College of Nurses sadly I don't think speak for their members because the picture they paint is not the picture that I see of the NHS. It is under pressure but actually the number of clinical staff throughout the NHS has gone up."
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The former mayor of Tower Hamlets, was forced to step down after he was found guilty of a string of corrupt and illegal practices.
The service is the first to be held in the singer's honour since the private funeral held by the family at Highgate Cemetery on March 29.
Newcastle United and West Ham United's grounds have been raided in connection with suspected tax fraud in the football industry.