Nat. Protoc. 8, 1234–1248 (2013); doi:10.1038/nprot.2013.070; published online 30 May 2013; corrected after print 16 January 2015

In the version of this article initially published, the PCR table at Step 34C(iii) was incorrect and the sliding splint sequence in Supplementary Table 3 was also incorrect. The errors have been corrected in the HTML and PDF versions of the article and in the revised Supplementary Table 3.