Correction to this article Akira Kato, Department of Biological Sciences, Tokyo Institute of Technology 6 November 2009 In the legend to Figure 1, scale bars represent "100 mm" instead of "50 mm". Competing interests None declared
Correction to this article
6 November 2009
In the legend to Figure 1, scale bars represent "100 mm" instead of "50 mm".
Competing interests
None declared