Bitots Spots, Dry Eyes, and Night Blindness Indicate Vitamin A Deficiency
Lancet 397:e2, Chakraborty, U. & Chandra, A., 2021
Why cant I see in the dark?
BMJ 373:m1573, Khan, S.,et al, 2021
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
Celiac Sprue & Refractory Sprue
Gastroenter. 75:3071978., Trier,J.S.,et al, 1978