About the Authors

Natalie J. Gauld

n.gauld@auckland.ac.nz

Affiliation Department of General Practice and Primary Health Care, University of Auckland, Auckland, New Zealand

Fiona S. Kelly

Affiliations School of Pharmacy, University of Auckland, Auckland, New Zealand, Griffith Health Institute, Griffith University, Brisbane, Queensland, Australia

Nahoko Kurosawa

Affiliation Hokkaido Pharmaceutical University School of Pharmacy, Otaru, Hokkaido, Japan

Linda J. M. Bryant

Affiliation Department of General Practice and Primary Health Care, University of Auckland, Auckland, New Zealand

Lynne M. Emmerton

Affiliation School of Pharmacy, Faculty of Health Sciences, Curtin University, Perth, Western Australia, Australia

Stephen A. Buetow

Affiliation Department of General Practice and Primary Health Care, University of Auckland, Auckland, New Zealand

Competing Interests

NG was a member of the Medicines Classification Committee of NZ (2004–2009), consulted on switch for Pharmacybrands Ltd, Pharmacy Retailing Ltd, Perrigo UK, Novartis Consumer Health, and Douglas Pharmaceuticals Ltd, and conducted research for Roche Products (New Zealand) Ltd. NG received travel funding as an invited speaker at an Australian Self-Medication Industries conference. NK declares the following potential conflicts of interest: consultancy for Kaigen Pharma Co Ltd, Japan. The other authors have no conflicts of interest to declare. This does not alter adherence to PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: NG LB SB. Analyzed the data: NG NK LB FK LE. Wrote the paper: NG SB LE LB FK NK.