Ebru Umay, Alev Çevikol Demirel, and Aytül Çakcı. 2007. “Hereditary Calcium Pyrophosphate Crystal Deposition Disease Simulating Spondyloarthropathy: Case Report”. Archives of Rheumatology 22 (2):080-083. http://www.anadolupsikiyatri.net/index.php/pub/article/view/226.