1. DuBois L. The slit lamp examination. In: DuBois L, Ledford JK, Daniels K, Campbell R, editors. Clinical skills for the ophthalmic examination: basic procedures. 2nd ed. Thorofare: Slack; 2006. p. 61–70.
2. Galor A, Jeng BH. Red eye for the internist: when to treat, when to refer. Cleve Clin J Med. 2008;75:137–44.
3. Lang GK. Ophthalmology: a short textbook. Stuttgart: Thieme; 2000.
4. Ledford JK, Sanders VN. The slit lamp primer. 2nd ed. Thorofare: Slack; 2006.