Notice of redundant publication: Aerobic capacity and disease activity in children, adolescents and young adults with juvenile idiopathic arthritis (JIA).

Comment on

Philomien A Pelt, Tim Takken, Marco Brussel, Inge Witte, Aike Kruize and Nico M Wulffraat

Aerobic capacity and disease activity in children, adolescents and young adults with juvenile idiopathic arthritis (JIA).

Pediatric Rheumatology 2012, :27 doi:10.1186/1546-0096-10-27

URL http://www.ped-rheum.com/content/10/1/27/

The Editors-in-Chief would like to alert readers that due to an error during the publication process this article [1] was published twice. The original article can be found in this journal [2].