Correction to: European Journal of Human Genetics (2015) 23, 996–1003; doi:10.1038/ejhg.2015.33; published online 11 March 2015

Corrections have been made to Figure 1 and a revised copy of this paper appears in this issue.

Figure 1
figure 1

Progress of the 650 new patients referred over the 3-month period (12.12.2011–12.03.2012), resulting in 825 offered contacts – with 12 months of follow-up until 12.03.2013.