Accepted for Publication: December 9, 2011.
Author Contributions: Drs Angenete, Gellerstedt, and Haglind had full access to all the data in the study and take responsibility for the integrity of the data and the accuracy of the data analysis. Study concept and design: Angenete, Gellerstedt, and Haglind. Acquisition of data: Angenete, Jacobsson, Gellerstedt, and Haglind. Analysis and interpretation of data: Angenete, Gellerstedt, and Haglind. Drafting of the manuscript: Angenete and Gellerstedt. Critical revision of the manuscript for important intellectual content: Angenete, Jacobsson, Gellerstedt, and Haglind. Statistical analysis: Angenete, Jacobsson, Gellerstedt, and Haglind. Obtained funding: Angenete and Haglind. Administrative, technical, and material support: Angenete and Haglind. Study supervision: Gellerstedt.
Financial Disclosure: None reported.
Funding/Support: This project was supported by grant CAN 2010/593 from the Swedish Cancer Foundation, grant SLS96721 from the Swedish Medical Association, grant GLS-93651 from the Gothenburg Medical Association, grants FB09-44 and FB10-20 from the Assar Gabrielsson Foundation, grants from the Magn Berwall's Foundation, and grant ALFGBG-136151 from the Swedish Research Council funding clinical research in medicine.
Role of the Sponsors: None of the funding sources had any role in the design and conduct of the study; the collection, management, analysis, and interpretation of the data; or the preparation, review, or approval of the manuscript.
Previous Presentation: Parts of the results were presented at a Swedish Surgical Meeting; August 22, 2010; Gothenburg, Kirurgveckan.