Polyclinics are central to the Government's overhaul of the health service but doctors and campaigners warn the reforms are being pushed through without proper thought. Latest figures show that more than 100 GP surgeries across London will shut to make way for polyclinics. Trusts to have drawn up closure plans include Haringey, Ealing, Kensington and Chelsea, Camden, City and Hackney, Enfield, Haringey and Lambeth.