Case Records of MGH-Polycythemia
Carotid Occlusion & Cerebral Infarcts, NEJM 291:96674., , 1974
Cogan Syndrome
www.medlink.com, Feb, Ramachandran, T.S., 2010
Cogan's Syndrome:18 Cases & a Review of the Literature
Mayo Clin Proc 61:344-361, Vollertsen,R.S.,et al, 1986