The mother of terminally ill baby Charlie Gard has vowed to keep fighting despite a High Court ruling stating his life support should be withdrawn.
Little eight-month-old Charlie, who suffers from a rare genetic condition and has brain damage, is at the centre of a dispute over whether life support treatment should be continued.
Medical experts at Great Ormond Street Hospital in London say Charlie should be moved into palliative care but his west London parents want to be allowed to take him to the US to try a new type of treatment.
A crowdfunding campaign to pay for the treatment has received more than £1,270,000 in donations, £30,000 short of its target.
In the court judgment on Tuesday, Mr Justice Francis told Ms Yates and Charlie's father, Chris Gard, it was with the "heaviest of hearts" but with "complete conviction" that the youngster should be allowed to die with dignity.
But mother Connie Yates, told the Daily Mail: “If we thought there was absolutely no hope we would not have fought for this.
"But if there is even the slimmest chance of a treatment working, and the doctor in the US told us he believes there is, what loving parent would not take that chance?"
Despite the verdict, the couple, who are in their 30s, want to continue their fight and, if possible, appeal the ruling - an option being assessed by their solicitor.
Ms Yates said pursuing all options for Charlie's treatment was not a selfish act "because we can't bear to let him go".
"It is because if we did not fight for this chance, we will have to live with the 'what if?' forever. It's that 'what if?' which for us would be so unbearable," she said.
Doctors say they will continue to provide life support treatment until appeal decisions have been made.
Mr Justice Francis granted the hospital's application after analysing the case at a hearing in the Family Division of the High Court in London over three days.
Mr Justice Francis heard that Charlie, who was born on August 4, had a form of mitochondrial disease, a condition which causes progressive muscle weakness and brain damage.
Specialists in the US had offered a therapy called nucleoside. But the judge said experts were agreed that the treatment could not reverse Charlie's structural brain damage.
Additional reporting by Press Association.