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
Phytanic Acid Storage Disease:Hearing Maintained After 15 Years of Dietary Treatment
Neurol 33:237-240, Djupesland,G.,et al, 1983