Correction to: Genetics in Medicine 21:2019; https://doi.org/10.1038/s41436-018-0259-2, published online 24 September 2018

The original version of this Article did not include Tatjana Bierhals, Maja Hempel, Jessika Johannsen, and Davor Lessel in the list of authors for their contribution to data collection and analysis. This has now been corrected in both the PDF and HTML versions of the Article.