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M. Abu-Hijleh, K. Styrvoky, F. Woll and V. Anand report no conflicts of interest. Dr. L. Yarmus has received research, educational funding and consulting fees from Olympus America. Dr. M. S. Machuzak served as a consultant to Spiration\/ Olympus America. Dr. D. A. Nader received research, educational and consulting fees from Olympus America. Dr. D. K. Hogarth served as a consultant to Spiration\/ Olympus America. This ended in 2015. Dr. J. Toth has received research, educational and consulting fees from Olympus America. Dr. R. F. Casal served as an educational consultant Olympus America and had research grants from Siemens and Concordia. Dr. S. Hazelrigg reports no conflicts of interest. Dr. D. E. Wood has received research, educational and consulting fees from Olympus America.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of interest"}}]}}