1. U.S. Department of Health and Human Services: STD (Sexually Transmitted Disease) Fact Sheet, Publication No. (CDC) 81–8195, ed. 35. Atlanta, Centers for Disease Control, 1981.
2. U.S. Department of Health and Human Services: Sexually Transmitted Disease (STD) Statistical Letter, Calendar Year 1981. Atlanta, Centers for Disease Control, 1982.
3. Syphilitic phlebitis simulating branch vein occlusion;Lobes;Ann. Ophthalmol.,1981
4. Diseases of the Retina;Duke-Elder,1967
5. Penicillin in the treatment of syphilis. The experience of three decades;Idsøe;Bull. W.H.O.,1972