1. Department of Rheumatology, Faculty of Medicine, Al Azhar University, Assiut, Egypt.
2. Department of Rheumatology, Al-Sabah Hospital, Kuwait, Kuwait.
3. Department of Rheumatology, Jaber Al Ahmad Hospital, Kuwait, Kuwait.
4. Asad Al Hamad Dermatology Center, Kuwait, Kuwait.
5. Department of Radiodiagnosis, Al-Sabah Hospital, Kuwait, Kuwait.
6. Department of Endemic and Infectious Diseases, Faculty of Medicine, Suez Canal University, Ismailia, Egypt.