| Authors: |
Gasparyan AY; Departments of Rheumatology and Research and Development, Dudley Group NHS Foundation Trust, Russells Hall Hospital, Dudley, West Midlands, UK., Yessirkepov M; Department of Biochemistry, Biology and Microbiology, South Kazakhstan State Pharmaceutical Academy, Shymkent, Kazakhstan., Gerasimov AN; Department of Statistics and Econometrics, Stavropol State Agrarian University, Stavropol, Russian Federation., Kostyukova EI; Department of Accounting Management, Faculty of Accounting and Finance, Stavropol State Agrarian University, Stavropol, Russian Federation., Kitas GD; Departments of Rheumatology and Research and Development, Dudley Group NHS Foundation Trust, Russells Hall Hospital, Dudley, West Midlands, UK; Arthritis Research UK Epidemiology Unit, University of Manchester, Manchester, UK. |