1. Research Department, Weill Cornell Medicine‑Qatar, P.O. Box 24144, Doha, Qatar
2. Diabetes Research Center, Qatar Biomedical Research Institute, Hamad Bin Khalifa University, Qatar Foundation, P.O. Box 34110, Doha, Qatar
3. Antidoping Laboratory Qatar, P.O. Box 27775, Doha, Qatar
4. Faculty of Medical Laboratory Sciences, University of Gezira, P.O. Box 20, Wad Medani, Sudan
5. Royal College of Surgeons in Ireland, P.O. Box 15503, Manama, Bahrain