1 Department of Emergency Medicine, Hamad Medical Corporation, Doha, Qatar. Electronic address: aazad@hamad.qa.
2 Department of Emergency Medicine, King Saud Medical City, Riyadh, Saudi Arabia.
3 Department of Emergency Medicine, School of Medical Science, Universiti Sains, Malaysia. Electronic address: drsfarid@usm.my.
4 Department of Emergency Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States. Electronic address: hshokoohi@mgh.harvard.edu.
5 Department of Emergency Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States.