Repeat: Dr Kay Metcalfe, a consultant geneticist at St Mary’s Hospital in Manchester, discovered that Dexter had a mutation in one of his genes – SCN3B – seen in just a handful of previous cases.
Dr Kay Metcalfe, a consultant geneticist at St Mary’s Hospital in Manchester, discovered that Dexter had a mutation in one of his genes – SCN3B – seen in just a handful of previous cases.