Abstract
Tohoku J. Exp. Med. 215: 181-187, 2008.
In the version of this article published in the June issue, 2008, the authors misspelled the last name of the third author as Makoto Kanazaki. The correct name is Makoto Kanzaki (M. Kanzaki). The error was corrected in the online version (PDF), which now differs from the printed version.