Three years ago Prince William gave patients and doctors at London's Royal Marsden Hospital alike a real boost.
The clinic had been damaged during a fire and the Prince was aware that a royal visit would lift spirits.
His mother Diana?supported the Royal Marsden as?president from 1989 until her death - a role that her elder son willingly took on in 2007.
On Thursday, the 29-year-old will take his bride Kate to open a new ...