About the Authors

Patricia McGettigan

Affiliation William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, London, United Kingdom

David Henry


Affiliations Institute for Clinical Evaluative Sciences, Toronto, Canada, Department of Medicine, University of Toronto, Toronto, Canada, School of Medicine and Public Health, The University of Newcastle, Newcastle, Australia

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: PMG DH. Analyzed the data: PMG DH. Wrote the first draft of the manuscript: PMG. Contributed to the writing of the manuscript: PMG DH. ICMJE criteria for authorship read and met: PMG DH. Agree with manuscript results and conclusions: PMG DH.