Friesen, V., Mbuya, M., Neufeld, L., & Wieringa, F. (2019). Fortified Foods Provide Varying Contributions to Iron, Vitamin a and Iodine Requirements of Women of Reproductive Age: Results from Coverage Surveys in 4 African Countries (P24-044-19). Curr Dev Nutr.

Friesen, Valerie, Mduduzi Mbuya, Lynnette Neufeld, und Frank Wieringa. "Fortified Foods Provide Varying Contributions to Iron, Vitamin a and Iodine Requirements of Women of Reproductive Age: Results From Coverage Surveys in 4 African Countries (P24-044-19)." Curr Dev Nutr 2019.

Friesen, Valerie, Mduduzi Mbuya, Lynnette Neufeld, und Frank Wieringa. "Fortified Foods Provide Varying Contributions to Iron, Vitamin a and Iodine Requirements of Women of Reproductive Age: Results From Coverage Surveys in 4 African Countries (P24-044-19)." Curr Dev Nutr 2019.