PubMed ID: 5659905
Author(s): Davis MD. The natural course of diabetic retinopathy. Trans Am Acad Ophthalmol Otolaryngol. 1968 Mar-Apr;72(2):237-40.
Journal: Transactions American Academy Of Ophthalmology And Otolaryngology. American Academy Of Ophthalmology And Otolaryngology, Volume 72, Issue 2,