Refsum Disease
In Rowland's Merritt's Textbk of Neurology, Lea & Febiger, Phila, 8thEd, p. 509, Menkes,J.H., 1989
Retinitis Pigmentosa
Surv Ophthalmol 33:137-177, Pagon,R.A., 1988
Tangier Disease (Hypo-a-Lipoproteinemia)
Textbook of Child Neurology, 3rd Ed. , Phila, Lea & Febiger, Ch 1, p 86, Menkes,J.H., 1985