1. World Health Organization. Programs and projects: The Department of Gender, Women, and Health. What do we mean by “sex” and “gender”? 2006. Available at: http://www.who.int/gender/en. Last accessed April 15, 2008.
2. Tearful relationships? Sex, hormones, the lacrimal gland, and aqueous-deficient dry eye;Sullivan;Ocul Surf,2004
3. the CLEK Study Group. Differences in keratoconus as a function of gender;Fink;Am J Ophthalmol,2005
4. The epidemiology of dry eye in Melbourne, Australia;McCarty;Ophthalmology,1998
5. Self-reported assessment of dry eye in a population-based setting;Bandeen-Roche;Invest Ophthalmol Vis Sci,1997