About the Authors

Verlaine J. Timms

Current address: Centre for Infectious Disease and Microbiology–Public Health, Level 3, ICPMR Westmead Hospital, Westmead, Sydney, Australia

Affiliation School of Biotechnology and Biomolecular Sciences, Level 3, Biosciences Building, University of New South Wales, Sydney, Australia

George Daskalopoulos

Affiliation Inner West Endoscopy Centre, Endoscopy Services Pty. Ltd., Marrickville, Sydney, Australia

Hazel M. Mitchell

Affiliation School of Biotechnology and Biomolecular Sciences, Level 3, Biosciences Building, University of New South Wales, Sydney, Australia

Brett A. Neilan

b.neilan@unsw.edu.au

Affiliation School of Biotechnology and Biomolecular Sciences, Level 3, Biosciences Building, University of New South Wales, Sydney, Australia

Competing Interests

VJT was employed part-time by Endoscopy Services Pty. Ltd. for five of the eight years of the study. GD was employed full time by Endoscopy Services Pty. Ltd., whose company partly funded this study. There are no patents, products in development or marketed products to declare. This does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: VJT GD BAN. Performed the experiments: VJT. Analyzed the data: VJT GD HMM BAN. Contributed reagents/materials/analysis tools: HMM BAN. Wrote the paper: VJT GD HMM BAN.