Correction to: Genet Med advance online publication 8 November 2018; https://doi.org/10.1038/s41436-018-0348-2

The second author Jiarui Li is now listed as a co–first author according to her contribution to this paper. The list of authors who contributed equally now reads: Qingping Zhang, Xiaoxu Yang, Jiaping Wang, and Jiarui Li. This has now been corrected in both the PDF and HTML versions of the Article.