Cogan Syndrome
www.medlink.com, Feb, Ramachandran, T.S., 2010
Refsum Disease
In Rowland's Merritt's Textbk of Neurology, Lea & Febiger, Phila, 8thEd, p. 509, Menkes,J.H., 1989
Cogan's Syndrome:18 Cases & a Review of the Literature
Mayo Clin Proc 61:344-361, Vollertsen,R.S.,et al, 1986