About the Authors

Sinéad M. Langan, Liam Smeeth, Sara L. Thomas
Department of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, United Kingdom

David J. Margolis
Department of Dermatology and Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania, Philadelphia, United States of America

Corresponding Author


Competing Interests

LS has undertaken consultancy for GlaxoSmithKline. DJM is on separate data safety monitoring boards for Abbott and Astellas. The authors declare no other conflicts of interest.

Author Contributions

Conceived and designed the experiments: SML ST DJM LS. Performed the experiments: SML. Analyzed the data: SML LS DJM SLT. Contributed reagents/materials/analysis tools: SML. Wrote the first draft of the manuscript: SML. Contributed to the writing of the manuscript: SML LS DJM SLT. ICMJE criteria for authorship read and met: SML LS DJM SLT. Agree with manuscript results and conclusions: SML LS DJM SLT.