Much of the evidence to the Bristol Royal Infirmary inquiry makes harrowing reading.Perhaps hardest to bear are the accounts from parents reliving the experiences - in public - surrounding the loss of their child.The next few weeks will bring them back under the public gaze.The three-year inquiry builds on the General Medical Council hearings, which examined 53 cases of heart surgery involving the deaths of 29 babies.The GMC struck off former chief executive Dr John Roylance and consultant cardiac surgeon James Wisheart two years ago, and gave surgeon Janardan Dhasmana a three-year ban on carrying out children's surgery, since extended.The Bristol inquiry has examined the care of all 1,800 babies and children who had complex cardiac care between 1984-95.But its repercussions will go further still.It will not only examine the state of the services provided and action taken to address concerns.It also aims to secure high-quality care across the NHS - a tall order, indeed