Vol. 211, No. 13, December 15, 2014. Pages 2487–2496.

The authors regret that Hong Jiang was omitted from the author’s list in the original version of this paper. This has been corrected in the html and pdf versions of the article.

In addition, Masashi Yanagisawa’s present address, omitted from the original version of this paper, is as follows: International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba 305-8575, Japan.