About the Authors

Risako Shirane

shirane@med.kobe-u.ac.jp

Address Current address: Kobe University School of Medicine, Kobe, Japan

Affiliation Department for Health, University of Bath, Bath, United Kingdom

Katherine Smith

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

Hana Ross

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

Karin E. Silver

Affiliation Department of Social and Policy Sciences, University of Bath, Bath, United Kingdom

Simon Williams

Affiliation Department for Health, University of Bath, Bath, United Kingdom

Anna Gilmore

Affiliation Department for Health, University of Bath, Bath, United Kingdom

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.