1. Department of Health Services Research, Care and Public Health Research Institute (Caphri), Faculty of Health Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands
2. Institut National de Santé Publique, D’épidémiologie Clinique Et de Toxicologie (Inspect-lb), Beirut, Lebanon
3. Nehme and Therese Tohme Multiple Sclerosis Center, Department of Neurology, Faculty of medicine American University of Beirut Medical Center, Beirut, Lebanon
4. Hariri School of Nursing, American University of Beirut, Lebanon Nehme and Therese Tohme Multiple Sclerosis Center, American University of Beirut Medical Center, Lebanon
5. Centre for Economic Evaluations and Machine Learning, Trimbos Institute, Utrecht, The Netherlands