Cline B, Kollo B, and Mather Frances.Evaluation of alternate methods of rapid assessment of endemicity of Onchocerca volvulus in communities in southern Cameroon.
Romero-Abal, M., Mendoza, I., Bulux, J., & Solomons, N. Blood Retinol and β-Carotene Levels in Rural Guatemalan Preschool Children.
Schwab L, Whitfield Jr. R, Ross-Degnan D, Steinkuller P, Swartwood J, the Survey Study Group (Adala H, Bakker N, Beekhuis H, Bisley G, Dekkers N, Hoshiwara I, Mandalia H, Mandalia P, Meaders R, Ochola JO, Sheffield V), "The Epidemiology of Trachoma in Rural Kenya - Variation in Prevalence with Lifestyle and Environment"
Degnan D, Schwab L, Steinkuller PG, and Swartwood J. The Epidemiology of Trachoma in Rural Kenya Variation in Prevalence with Lifestyle and Environment.
Clare E. Gilbert, Keith Waddel, Mark Wood & Allen Foster (2009) Causes of childhood blindness in East Africa: Results in 491 pupils attending 17 schools for the blind in Malawi, Kenya and Uganda
Transactions of The Royal Society of Tropical Medicine and Hygiene, Volume 88, Issue 6, 1 December 1994, Pages 711
Paul Courtright; Routine vitamin A supplementation, fever, and nutritional status in Malawian children during a drought