Journal Article
Eusebio, Cristina, Hannah Kuper, Sarah Polack, John Enconado, Noel Tongson, Donald Dionio, Anne DumDum, Hans Limburg, and Allen Foster.
"Rapid assessment of avoidable blindness in Negros Island and Antique District, Philippines." British Journal of Ophthalmology 91, no. 12 (2007): 1588-1592.