They claimed the North Ayrshire men suffered a miscarriage of justice because the packages sent were obviously hoaxes.

BBC: Trevor Muirhead and Neil McKenzie

It found that women whose partners had served in the Gulf were 60% more likely to have suffered a miscarriage in the years that followed.

BBC: There were differences in miscarriage rates

Fraser claims he suffered a miscarriage of justice because a witness revealed to the jury in the second trial that the accused had been in prison shortly before his wife disappeared.

BBC: Nat Fraser case: Arlene murder appeal debate set for 9 April

Mrs Hood was also chaplain at Royal Alexandra Hospital in Paisley for more than two decades, where she was part of a team which pioneered a care plan for women who had suffered a miscarriage or the loss of a newborn.

BBC: Lorna Hood

In a letter, Mr Blair acknowledged the "miscarriage of justice" which they suffered as a result of their wrongful convictions.

BBC: Blair apologises to Guildford Four

The researchers compared a group of 105 women who had all suffered recurrent spontaneous miscarriages with a carefully matched control group of 91 postmenopausal women who had never had a miscarriage and who had given birth at least twice.

BBC: Miscarriage gene identified