1 Department of Community Medicine, Employees State Insurance Corporation Medical College and Post Graduate Institute of Medical Sciences and Research, Bangalore, India.
2 College of Medicine, King Fahd Hospital of the University, University of Dammam, Dammam, Saudi Arabia.
3 Dow Medical College, Dow University of Health Sciences, Karachi, Pakistan. Electronic address: drsahussain121@gmail.com.
4 Médecins Sans Frontières-Brussels Operational Centre, Luxembourg.