Author Contributions: Dr Soetikno 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: Soetikno.
Acquisition of data: Soetikno, Kaltenbach,
Rouse, Park, Maheshwari, Sato, Matsui, Friedland.
Analysis and interpretation of data: Soetikno, Kaltenbach, Rouse, Park, Maheshwari, Matsui.
Drafting of the manuscript: Soetikno,
Critical revision of the manuscript for important intellectual content: Soetikno, Kaltenbach, Rouse, Park, Maheshwari,
Sato, Matsui, Friedland.
Statistical analysis: Soetikno, Kaltenbach,
Obtained funding: Soetikno.
Administrative, technical, or material support: Soetikno, Kaltenbach, Rouse, Park, Maheshwari, Sato, Matsui, Friedland.
Study supervision: Soetikno, Matsui.
Financial Disclosures: None reported.
Funding/Support: The Palo Alto Institute provided funding for the study for Research and Education, a nonprofit organization.
Role of the Sponsor: The Palo Alto Institute had no role in the design and conduct of the study; in the collection, analysis, and interpretation of the data; or in the preparation,
review, or approval of the manuscript.
Additional Information: A video demonstrating the use of indigo carmine to locate NP-CRNs and the treatment of NP-CRNs using endoscopic mucosal resection is available
Additional Contributions: We thank the nurses and staff of the Veterans Affairs Palo Alto Health Care System endoscopy and pathology units for their assistance. We would also like to express our sincere appreciation to our Japanese endoscopy and pathology colleagues, in particular Shin-ei Kudo, MD, PhD, Showa University, Yokohama, Japan; Takahiro Fujii, MD, PhD, National Cancer Center Hospital, Tokyo, Japan; and Yasushi Sano, MD, PhD, National Cancer Center East, Kashiwa, Japan, who contributed significant knowledge and technical assistance without receiving compensation from this study.