Objective:To study the curative effect of free periosteum transplantation on ankylosing spondylitis, rheumatoid arthritis and ankylosis .
目的：探讨游离骨膜移植治疗强直性脊柱炎、类风湿关节炎、髋关节强直的效果。
2
Objective:To investigate the epidemiology of rheumatoid arthritis (RA) and ankylosing spondylitis (AS) in Shandong rural area.
目的：探讨山东省农村地区类风湿关节炎（RA）和强直性脊柱炎（AS）的流行情况。
3
Celecoxib-containing products are currently authorised in the European Union for the treatment of the symptoms of osteoarthritis, rheumatoid arthritis and ankylosing spondylitis.