L. Oktay Erdem, C. Zuhal Erdem, and Selda Sarıkaya. 2004. “SACROILIITIS IN PATIENTS WITH ANKYLOSING SPONDYLITIS: THE FINDINGS OF MAGNETIC RESONANCE IMAGING”. Archives of Rheumatology 19 (3):153-58. http://anadolupsikiyatri.net/index.php/pub/article/view/145.