1South African Vitamin A Consultative Group (SAVACG). Anthropometric, vitamin A, iron and immunisation coverage status in children aged 6–71 months in South Africa, 1994. S. Afr. Med. J. 1996; 86: 354–7.
2West, KP Jr, Sommer, A. Delivery of Oral Doses of Vitamin A to Prevent Vitamin A Deficiency and Nutritional Deficiency: a State-of-the-Art Review. United Nations ACC/SCN Nutrition Policy Discussion Paper No. 2. Rome: Food and Agricultural Organization, 1987.
3Van Stuijvenberg, ME, Kvalsvig, JD, Faber, M, Kruger, M, Kenoyer, DG, Benadé, AJS. Effect of iron-, iodine-, and β-carotene-fortified biscuits on the micronutrient status of primary school children: a randomized controlled trial. Am. J. Clin. Nutr. 1999; 69: 497–503.
4UNICEF. Strategy for Improved Nutrition of Children and Women in Developing Countries. UNICEF: New York, 1990.
5Nestel, P, Herrera, MG, El Amin, A, Fawzi, W, Mohammed, KA, Weld, L.Risk factors associated with xerophthalmia in northern Sudan. J. Nutr. 1993; 123: 2115–21.
6Hussain, A, Kvale, G.Environmental conditions, health behavior, and mortality in siblings as risk indicators of night blindness. Am. J. Trop. Med. Hyg. 1996; 54: 309–12.
7Ahmed, F, Khan, MR, Faruque, O, Taj, S, Hyderi, T, Jackson, AA. Serum retinol is influenced by social factors and antioxidant nutrients among adolescent girls in urban Bangladesh. Int. J. Food Sci. Nutr. 1998; 49: 39–44.
8Rosen, DS, Sloan, NL, del Rosario, A, de la Paz, TC. Risk factors for vitamin A deficiency in rural areas of the Philippines. J. Trop. Pediatr. 1994; 40: 82–7.
9Faber, M, Benadé, AJS. Nutritional status and dietary practices of 4–24-month-old children from a rural South African community. Public Health Nutr. 1999; 2: 179–85.
10Faber, M, Oelofse, A, Benadé, AJS. A model for a community-based growth monitoring system. Afr. J. Health Sci. 1998; 5: 72–8.
11Catignani, GL, Bieri, JG. Simultaneous determination of retinol and α-tocopherol in serum or plasma by liquid chromatography. Clin. Chem. 1983; 29: 708–12.
12Jelliffe, DB, Jelliffe, EFP. Anthropometry: major measurements. In: Jelliffe, DB, Jelliffe, EFP, eds. Community Nutritional Assessment, 1st edn. Oxford: Oxford University Press, 1989; 68–104.
13Gross, R, Kielman, A, Korte, R, Schoeneberger, H, Schultink, W. Guidelines for Nutrition Baseline Surveys in Communities, Version 1.2. Thailand: TW System (Thailand) Co., Ltd, 1997.
14Hamill, PVV, Drizd, TA, Johnson, CL, Reed, RB, Roche, AF, Moore, WM. Physical growth: National Center for Health Statistics percentiles. Am. J. Clin. Nutr. 1979; 32: 607–29.
15Campbell, CC. Food insecurity: a national outcome or a predictor variable? J. Nutr. 1991; 121: 408–15.
16Range, SKK, Naved, R, Bhattarai, S. Child Care Practices Associated with Positive and Negative Nutritional Outcomes for Children in Bangladesh: a Descriptive Analysis. FCND Discussion Paper No. 24. Washington, DC: Food Composition and Nutrition Division, 1997.
17Zeitlin, MF. Child Care and Nutrition: the Findings from Positive Deviance Research. Medford, MA: Tufts University, School of Nutrition, 1994.
18Faber, M, Oelofse, A, Kriek, AJ, Benadé, AJS. Breastfeeding and complementary feeding practices in a low socio-economic urban and a low socio-economic rural area. S. Afr. J. Food Sci. Nutr. 1997; 9: 43–51.
19Lloyd, CB, Gage-Brandon, AJ. Women's role in maintaining household: family welfare and sexual inequality in Ghana. Popul. Stud. 1993; 47: 115–31.
20Hussain, A, Kvåle, G.Serum vitamin A in relation to socio-economic, demographic and dietary characteristics in Bangladeshi children. Acta Paediatr. 1996; 85: 971–6.
21Faber, M, Smuts, CM, Benadé, AJS. Dietary intake of primary school children in relation to food production in a rural area in KwaZulu-Natal. Int. J. Food Sci. Nutr. 1999; 50: 57–64.