1. Lemp MA. Report of the National Eye Institute/Industry Workshop on Clinical Trials in Dry Eyes. CLAO J. 1995; 21: 221–232.
2. Gilbard JR. Dry eye disorders. In: Albert DM, Jakobiec FA, eds. Principles and Practice of Ophthalmology. Philadelphia: Saunders; 1994: 257–276.
3. Tsubota K, Toda I, Yagi Y, et al. Three different types of dry eye syndrome. Cornea. 1994; 13: 202–209.
4. Tsubota K. SS dry eye and non-SS dry eye: What are the differences? In: Homma M, Sugai S, Tojo T, Miyasaka N, Akizuki M, eds. Sjögrens Syndrome: State of the Art. Amsterdam: Kugler; 1994: 21–26.
5. Mathers WD. Ocular evaporation in meibomian gland dysfunction and dry eye. Ophthalmology. 1993; 100: 347–351.