Doctors 'bullied by medical chiefs' for criticising NHS reforms Mr Lansley insisted his reforms aimed at increasing competition in the NHS are widely supported. He also accused Mr Burnham of "resorting to abuse." The controversy comes as a senior Conservative backbencher broke ranks to warn that the Health Bill is in danger of becoming "toxic." Mark Field, MP for Cities of London and Westminster, said it appeared "suspicious" that the government is refusing to publish its "risk register" detailing all the potential problems associated with the reforms. The MP is a strong supporter of the Health Bill as many doctors in his constituency back the reforms. However, he is concerned that the Government looks like it is trying to hide something by declining to release the register. "They need to make their case better," he said. I feel we should be up front on this issue. Quietly, quite a lot of Conservatives are concerned about it and it's a potentially toxic issue. It seems to me that if we're not releasing this data then it looks suspicious and like there is something to hide. More than 80 MPs have now signed a motion calling on the Government to publish the risk register, including Duncan Hames, a Liberal Democrat ministerial aide. David Cameron is under increasing pressure to show he has listened to critics of the bill, as the Royal College of Physicians and the Royal College of Paediatrics and Child Health decide whether to give him their support. Yesterday, the Prime Minister's official spokesman did not rule out further minor amendments but said he not "envisage significant changes." However, the Deputy Prime Minister appeared more reserved over whether he would like changes. Asked whether he backed the Bill 100 per cent, Mr Clegg paused before replying: "I am behind reforming the NHS to improve care for patients." During a fractious debate on the Bill, ministers yesterday leapt on new figures showing there are more midwives and doctors as "clear proof that the NHS is moving forwards under the Coalition." The official statistics showed a four per cent in increase in doctors and midwifes between November last year and May 2010. Over the same period, the number of administrators fell by seven per cent and the number of managers by 14 per cent.