Severe atlantoaxial subluxation in early ankylosing spondylitis.
Chen
Wei-Sheng
WS
Division of Allergy, Immunology & Rheumatology, Department of Medicine, Taipei Veterans General Hospital and National Yang-Ming University School of Medicine, Taipei, Taiwan.
Lee
Hui-Ting
HT
Tsai
Chang-Youh
CY
Chou
Chung-Tei
CT