Cogan's Syndrome:18 Cases & a Review of the Literature
Mayo Clin Proc 61:344-361, Vollertsen,R.S.,et al, 1986
Cogan Syndrome
www.medlink.com, Feb, Ramachandran, T.S., 2010
Cerebral & Retinal Vascular Complications of Inflammatory Bowel Disease
Ann Neurol 5:331-337, Schneiderman,J.H.,et al, 1979