Whether his department has negotiated any fee with private hospitals with regard to treating Government patients who need emergency medical care; if not, (a) why not, (b) how is the Government invoiced and (c) what amount has the Government paid to each hospital group in the (i) 2008-09, (ii) 2009-10 and (iii) 2010-11 financial years; if so, what tariffs have been set?