About the Authors

Risako Shirane, Simon Williams, Anna Gilmore
Department for Health, University of Bath, Bath, United Kingdom

Katherine Smith
Global Public Health Unit, School of Social & Political Science, University of Edinburgh, Edinburgh, United Kingdom

Hana Ross
International Tobacco Control Research, American Cancer Society, Atlanta, Georgia, United States of America

Karin E. Silver
Department of Social and Policy Sciences, University of Bath, Bath, United Kingdom

Corresponding Author

shirane@med.kobe-u.ac.jp

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Analyzed the data: RS KS KES SW AG. Wrote the first draft of the manuscript: RS KS AG. Contributed to the writing of the manuscript: HR KES SW. ICMJE criteria for authorship read and met: RS KS HR KES SW AG. Agree with manuscript results and conclusions: RS KS HR KES SW AG. Document serching: RS KS. Background data: HR SW AG. Prepared interview schedule: HR SW AG. Helped with translation of participant information and consent form: HR. Undertook the interviews: HR. Directed the overall project including this case study and supervised the documentary and interview analyses: AG.