Greg McCallum, the Rugby Football League's executive director, said it was vital Cunningham underwent the operation now.
Lomu faced life in a wheelchair if a kidney transplant was not performed, so underwent the operation.
Clinton, 58, underwent the operation Monday to bypass the clogged arteries.
One of the organisers of the march, Sue Hurrell from Cardiff, said her seven-year-old daughter Imogen underwent the operation in the USA earlier this year and was making "tremendous progress".
Mr Prior underwent an operation but the couple have since left hospital and returned to the ship last Thursday.
An elbow injury ruled Kempson out of the South African World Cup squad and the prop underwent an operation earlier last week.
BBC: Kempson is missing out on the World Cup for a second time
Fraser was born with the congenital liver defect biliary atresia, and when he was just six- weeks-old he underwent an operation to correct the problem.
The horse underwent surgery again 24 hours after a prolonged operation to remove a blockage of the small intestine.
But he gave very little further concrete information about the condition of the president, who underwent his operation on 11 December.
The Wales skipper showed pace that belied the groin operation he underwent nine days ago and drew a full-stretch save from Antonis Georgallides.
The 30-year-old, who underwent a fourth operation on his ankle last October, has not played for England since the 2006-07 Ashes series in Australia.
The Scarlets player this week underwent an operation to remove his appendix.
The 33-year-old underwent an operation on his neck in November, forcing him out of England's autumn internationals.
He added that her condition worsened after she underwent a further hip operation following a fall at the hospital.
When Mr Yeltsin fell dangerously ill and underwent a heart bypass operation, Mr Chubais held the machinery of government together.
Ms Pate claims she underwent a spinal fusion operation and has not been able to work since the accident in January 2009.
Elizabeth, 56, underwent a male-to-female sex change operation in 1981 and married Michael Bellinger the same year.
BBC: Transsexual Elizabeth Bellinger and her husband Michael
He underwent knee surgery in 2008, then elbow surgery in 2009, all leading up to the 2010 shoulder operation.
应用推荐