About the Authors

Salman Rawaf
WHO Collaborating Centre, Imperial College London, London, United Kingdom

Corresponding Author

s.rawaf@imperial.ac.uk

Competing Interests

The author has declared that no competing interests exist.

Author Contributions

Wrote the first draft of the manuscript: SR. Contributed to the writing of the manuscript: SR. ICMJE criteria for authorship read and met: SR. Agree with manuscript results and conclusions: SR.