J. Duraisamy, S. Kavitha, S. Rathinam, and G. Vasanthi, “Geomapping of trematode-induced granulomatous anterior uveitis - a newly identified cause of blindness among children in the Pudukkottai district of the Tamil Nadu State, India”, Geospat Health, vol. 4, no. 1, pp. 55–63, Nov. 2009.