Retinitis Pigmentosa
Surv Ophthalmol 33:137-177, Pagon,R.A., 1988
Paraneoplastic Syndromes Involving the Eyes
In Walsh & Hoyt's Clin Neuro-ophthal, 4th ed, Williams & Wilkins, Vol 3, p 1735-1746, Miller,N.R., 1988
Iatrogenic Night Blindness & Keratoconjunctival Xerosis
NEJM 301:943-944, Partamian,L.G.,et al, 1979