Accepted for Publication: December 29, 2011.
Author Contributions: Drs McClenahan and Blake had full access to all of the data in the study and take full responsibility for the integrity of the data and accuracy of the data analysis. Study concept and design: McClenahan, Blake, Gilmore, and Soyer. Acquisition of data: McClenahan, Blake, and Douglas. Analysis and interpretation of data: McClenahan, Blake, and Gilmore. Drafting of the manuscript: McClenahan and Blake. Critical revision of the manuscript for important intellectual content: McClenahan, Blake, Douglas, Gilmore, and Soyer. Statistical analysis: McClenahan and Gilmore. Obtained funding: Soyer. Administrative, technical, and material support: Blake. Study supervision: Douglas and Soyer.
Financial Disclosure: None reported.
Funding/Support: This study was supported by research grant APP1004999 from the National Health and Medical Research Council (Dr Soyer).