Brody, T., Shane, B. & Stokstad, E. L. R. (1984). Folic acid. In Handbook of Vitamins, pp. 459–496 [Machlin, L. J., editor]. New York: Marcel Dekker.
Burns, R. A. & Jackson, N. (1976). Effects of folate deficiency on some hepatic enzymes of folate metabolism in the oestrogen-treated female chick (domestic fowl). Biochemical Society Transactions 4, 914–917.
Cossins, E. A. (1984). Folates in biological materials. In Folates and Pterins, vol. 1, pp. 1–59 [Blakely, R. L. and Benkovic, S. J., editors]. New York: J. Wiley and Sons, Inc.
Deacon, R., Chanarin, I., Percy, J. & Lumb, M. (1981). The effect of folate analogues on thymidine utilisation by human and rat marrow cells and the effect on the deoxyuridine suppression test. Postgraduare Medical Journal 57, 611–616.
Ghitis, J., Schreiber, C. & Waxman, S. (1987). Phosphate-induced phosphoribosylpyrophosphate elevations to assess deranged folate and purine nucleotide metabolism. Proceedings of the Society for Experimental Biology and Medicine 186, 90–95.
Ghitis, J. & Waxman, S. (1987). Modified phosphoribosylpyrophosphate (PRPP) radioenzymatic assay: increased sensitivity, technical simplification and new applications. Clinica Chimica Acta 164, 267–273.
Hershko, A., Razin, A. & Mager, J. (1969). Regulation of the synthesis of 5-phosphoribosyl-I-pyrophosphate in intact red blood cells and in cell-free preparations. Biochimica et Biophysica Acta 184, 64–76.
Metz, J. (1984). The deoxyuridine suppression test. CRC Critical Reviews in Clinical Laboratory Sciences 20, 205–241.
Metz, J., Kelly, A., Swett, V. C. & Waxman, S. (1968). Deranged DNA synthesis by bone marrow from vitamin B12 deficient humans. British Journal of Haematology 14, 575–592.
National Research Council (1984). Nutrient Requirements of Poultry, 8th ed. Washington, DC: National Academy Press.
Whitehead, C. C. & Rennie, J. S. (1989). Relation between some folate-dependent metabolic pathways and dietary folate content in chicks. British Journal of Nutrition 62, 203–209.
Wickramasinghe, S. N. & Longland, J. E. (1974). Assessment of deoxyuridine suppression test in diagnosis of B, or folate deficiency. British Medical Journal 3, 148–150.
Wong, P. C.-K., Vohra, P. & Kratzer, F. H. (1977). The folate requirements of broiler chicks and quail (Coturnix coturnix japonica). Poultry Science 56, 1852–1860.