1 Rheumatology Unit, Temara Hospital, Laboratory of Biostatistics, Clinical Research and Epidemiology (LBRCE), Faculty of Medicine and Pharmacy, Mohammed V University, 10 000 Rabat, Morocco. Electronic address: ihsane.hmamouchi@gmail.com.
2 Rheumatology Department, Saint-Joseph University and Hotel-Dieu de France Hospital, Beirut, Lebanon.
3 Specialized Medical Center, Riyadh, Saudi Arabia.