S. Balta, S. Demirkol, U. Kucuk, Z. Arslan, M. Unlu, and V. Veliyev, “Carotid intima-media thickness is a relatively inexpensive and favorable prognostic marker in patients with spondyloarthritis”, Sao Paulo Med J, vol. 131, no. 6, pp. 436–438, Nov. 2013.