Author Contributions: Dr Wallace had full access to all of the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analysis.
Study concept and design: Wallace,
Pascual, Crook, Johnson, Odell.
Acquisition of data: Wallace, Pascual,
Raimondo, Johnson, Al-Haddad, Gross, Pungpapong, Hardee, Odell.
Analysis and interpretation of data: Wallace, Pascual, Woodward, McComb, Crook.
Drafting of the manuscript: Wallace,
Pascual, Woodward, Al-Haddad.
Critical revision of the manuscript for important intellectual content: Wallace, Pascual, Raimondo, Woodward,
McComb, Crook, Johnson, Gross, Pungpapong, Hardee, Odell.
Statistical analysis: Wallace, Crook.
Obtained funding: Wallace.
Administrative, technical, or material support: Wallace, Pascual, Raimondo, Woodward, McComb, Johnson, Al-Haddad,
Study supervision: Wallace, Pascual.
Financial Disclosures: Dr Wallace reported receiving research grants from Olympus Corp, Fujinon, and Cook Co,
makers of equipment relevant to endoscopic ultrasound. No other disclosures were reported.
Funding/Support: This study was supported in part by National Cancer Institute grant R33CA97875 and by James and Esther King Foundation of the State of Florida, Department of Health, grant H06052. Grant support in the form of equipment was provided by Olympus Corp, Center Valley, Pennsylvania.
Role of the Sponsors: The National Cancer Institute, the James and Esther King Foundation, and Olympus Corp had no role in the design and conduct of the study; the collection,
management, analysis, or interpretation of the data; or the preparation,
review, or approval of the manuscript.
Previous Presentation: Portions of this article were presented in abstract form at Digestive Disease Week 2007; May 21-23, 2007; Washington, DC; and at Chest 2007; October 20-25, 2007; Chicago Illinois.
Additional Contributions: We thank Carolyn Reed, MD (Division of Thoracic Surgery), and Gerard Silvestri,
MD (Division of Pulmonary Medicine), Medical University of South Carolina,
for critical review of the manuscript and Rebecca McNeil, PhD (Biostatistics Unit, Mayo Clinic, Jacksonville, Florida), for data analysis and statistical assistance. Drs Reed and Silvestri received no compensation for the critical review; Dr McNeil did receive compensation for the statistical analysis.