Impact on clinical and cost outcomes of a centralized approach to acute stroke care in London: a comparative effectiveness before and after model. oleh Rachael Maree Hunter, Charles Davie, Anthony Rudd, Alan Thompson, Hilary Walker, Neil Thomson, James Mountford, Lee Schwamm, John Deanfield, Kerry Thompson, Bikash Dewan, Minesh Mistry, Sadik Quoraishi, Stephen Morris