Background: Trisomy 18 is the second most common autosomal trisomy in liveborn infants, characterised by severe psychomotor and growth retardation. The median survival is 19 days, with only 5-8% ...

Harley was born prematurely with Trisomy 18, a chromosome disorder leaving her with three 18th chromosomes in a cell instead of the normal two. The extra chromosome results in congenital ...