CORRIGENDA

Corrigendum: Highly efficient neural conversion of human ES and PS cells

by dual inhibition of SMAD signaling

Stuart M Chambers, Christopher A Fasano, Eirini P Papapetrou, Mark Tomishima, Michel Sadelain & Lorenz Studer

Nat. Biotechnol.

26,275-280 (2009); published online 1 March 2009; corrected after print 16 March 2009

In the version of this article initially published, the unit (nM) for the amount of TGF-b inhibitor (Tocris) reported in the Methods section "Neural

induction" was incorrect. The correct unit is pM. The error has been corrected in the HTML and PDF versions of the article.

NATURE BIOTECHNOLOGY

VOLUME 27 NUMBER 4 APRIL 2009