Name	Location	Contribution
Mona M. Almramhi, PhD	University College London, London, United Kingdom	Study concept, design and statistical analysis, access to all the data and takes responsibility for the integrity of the data, critical revision of the manuscript for important intellectual content
Chris Finan, PhD	University College London, London, United Kingdom	Interpretation of results and critical revision of the manuscript for important intellectual content
Amand F. Schmidt, PhD	University College London, London, United Kingdom	Interpretation of results and critical revision of the manuscript for important intellectual content
Catherine S. Storm, MBPhD	University College London, London, United Kingdom	Interpretation of results and critical revision of the manuscript for important intellectual content
Demis A. Kia, MBBS	University College London, London, United Kingdom	Interpretation of results
Rachel Coneys, BSc	University College London, London, United Kingdom	Interpretation of results and critical revision of the manuscript for important intellectual content
Sandesh Chopade, MSc	University College London, London, United Kingdom	Access to all the data in the study and takes responsibility for the integrity of the data
Aroon D. Hingorani, PhD	University College London, London, United Kingdom	Interpretation of results
Nicholas W. Wood, MD, PhD	University College London, London, United Kingdom	Interpretation of results, critical revision of the manuscript for important intellectual content and study supervision