Saime Sarıoğlu Ay, Burçin Aslan Özçakar, and Gülay Dinçer. 2003. “UNDIFFERENTIATED SPONDYLOARTROPATHY: A CASE REPORT”. Archives of Rheumatology 18 (2):099-103. http://www.anadolupsikiyatri.net/index.php/pub/article/view/108.