Duygu Geler Külcü, Müge Bıçakçıgil, Gülçin Gülşen, Demet Taşan, Esra İmamoğlu, and Derya Özkan. 2009. “Relationship Between Upper Extremity Muscle Strength and Functional Level and Mobility in Patients With Ankylosing Spondylitis”. Archives of Rheumatology 24 (2):082-087. http://anadolupsikiyatri.net/index.php/pub/article/view/299.