Correction for Amthor et al., Lack of myostatin results in excessive muscle growth but impaired force generation

CELL BIOLOGY. For the article “Lack of myostatin results in excessive muscle growth but impaired force generation,” by Helge Amthor, Raymond Macharia, Roberto Navarrete, Markus Schuelke, Susan C. Brown, Anthony Otto, Thomas Voit, Francesco Muntoni, Gerta Vrbóva, Terence Partridge, Peter Zammit, Lutz Bunger, and Ketan Patel, which appeared in issue 6, February 6, 2007, of Proc Natl Acad Sci USA (104:1835–1840; first published January 31, 2007; 10.1073/pnas.0604893104), the authors note that the corresponding author's e-mail address appeared incorrectly. The correct address is helge.amthor@psl.aphp.fr. The online version has been corrected.