Nat. Biotechnol. 33, 933–940 (2015); published online 10 August 2015; corrected after print 1 October 2015

In the version of this article initially published, in the HTML only, all authors names were incorrectly included in the main author list, and several authors names were repeated. The authors have now added 12 additional authors to the list of “Other participants in the NIEHS-NCATS-UNC DREAM Toxicogenetics Collaboration,” including Alok Jaiswal, Antti Poso, Himanshu Chheda, Ismeet Kaur, Jing Tang, John-Patrick Mpindi, Krister Wennerberg, Natalio Krasnogor, Samuel Kaski, Tero Aittokallio, Petteri Hintsanen and Suleiman Ali Khan. Names in this list that were also in the list of “top-performing teams” have been deleted. In addition, affiliation number 3 (Univ. Texas) has been added to Xiaowei Zhang's name in the main author list. The errors have been corrected in the HTML and PDF versions of the article.