Erratum: Asymmetric RNA duplexes mediate RNA interference in mammalian cells

Nat. Biotechnol. 26, 1379–1382 (2008); published online 23 November 2008; corrected after print 9 February 2009 In the version of this article initially published, on page 1379, column 2, line 7, a parenthesis was misplaced. “...the passenger (often the sense strand)” should have read, “...the passenger (often the sense) strand”.