1. Department of Clinical Immunology and Rheumatology, SGPGIMS, Lucknow, India.
2. Medical College, The Aga Khan University, Karachi, Pakistan.
3. Department of Biology and Biochemistry, South Kazakhstan Medical Academy, Shymkent, Kazakhstan.
4. Department of Internal Medicine No. 2, Danylo Halytsky Lviv National Medical University, Lviv, Ukraine.
5. Departments of Rheumatology and Research and Development, Dudley Group NHS Foundation Trust (Teaching Trust of the University of Birmingham, UK), Russells Hall Hospital, Dudley, West Midlands, UK.