1. Ahlborg, U. G., Kolmodin-Hedman, B., Skerfving, S.: TCDD ? A study of the accident in Seveso 1976. Arbete och h�lsa 5, 1?36 (1977) (In Swedish with English summary)
2. Ahlborg, U. G., Thunberg, T.: Effects of 2,3,7-8-tetrachlorodibenzo-p-dioxin on the in vivo and in vitro dechlorination of pentachlorophenol. Arch. Toxicol. 40, 55?61 (1978)
3. Allcroft, R., Lewis, G.: Groundnut toxicity in cattle: Experimental poisoning of calves and a report on clinical effects in older cattle. Vet. Rec. 75, 487?493 (1963)
4. Baumann, C. A., Foster, E. G., Lavik, P. S.: The effects of certain carcinogens on vitamin A in the liver. J. Nutr. 21, 431?444 (1941)
5. Bollag, W.: Vitamin A and vitamin A acid in the prophylaxis and therapy of epithelial tumours. Int. J. Vitam. Nutr. Res. 40, 299?313 (1970)