Şenay Özdolap, Selda Sarıkaya, Ülkü Koç, and Aynur Başaran. 2006. “Effect of Traction Therapy in Knee Osteoarthritis: A Prospective Controlled Study”. Archives of Rheumatology 21 (3):084-086. http://www.anadolupsikiyatri.net/index.php/pub/article/view/200.