1 Research & Innovation Center, King Saud Medical City, Ministry of Health, Riyadh, Saudi Arabia; College of Medicine, Alfaisal University, Riyadh, Saudi Arabia; Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA. Electronic address: zmemish@yahoo.com.
2 Medical Referral Center, National Health Command Center, Ministry of Health, Riyadh, Saudi Arabia; King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia.
3 University of Sciences, Technique and Technology, Bamako, Mali.