Correction to: Spinal Cord advance online publication, 3 July 2007; doi:10.1038/sj.sc.3102089

Since the publication of the above article, the authors have noticed that the ordering of the author names was incorrect.

The correct ordering of the author names is shown below.

GI Correa, WO Calderón, LA Burnier, SE Danilla, RG Roa and LM Guzmán

The typesetters would like to apologize for this mistake.