References
- Abraham S, Lowenstein F W, Johnson C L. Preliminary findings of the first Health and Nutrition Examination Survey, United States, 1971–72. National Center for Health Statistics, Rockville, Maryland 1974, DHEW publication no. HRA 74-1219-1
- Ahmed F, Mohiduzzaman M, Barua S, Shaheen N, Margetts B M, Jackson A A. Effect of family size and income on the biochemical indices of urban school children of Bangladesh. Eur. J. Clin. Nutr. 1992; 46: 465–473
- Bieri J G, Tolliver T J, Catignani G L. Simultaneous determination of α-tocopherol and retinol in plasma or red cells by high pressure liquid chromatography. Am. J. Clin. Nutr. 1979; 32: 2143–2149
- Cawthorne M A, Banyan J, Diplock A T, Murrell E A, Green J. On the relationship between vitamin A and vitamin E in the rat. Br. J. Nutr. 1968; 22: 133–143
- Chen L H, Hsu S-J, Huang P-C, Chen J-S. Vitamin E status of Chinese population in Taiwan. Am. J. Clin. Nutr. 1977; 30: 728–735
- Comstock G W, Menkes M S, Schober S E, Vuilleumier J-P, Helsing K J. Serum levels of retinol, beta-carotene and alpha-tocopherol in older adults. Am. J. Epidemiol. 1987; 127: 114–123
- Desai I D, Lee M. Vitamin E status of Indians of western Canada. Can. J. Public Health 1974; 65: 191–196
- Friedman G D, Blaner W S, Goodman D S, Vogelman J H, Brind J L, Hoover R, Fireman B H, Orentreich N. Serum retinol and retinol-binding protein levels do not predict subsequent lung cancer. Am. J. Epidemiol. 1986; 123: 781–789
- Goodhart R S, Shils M E. Modern nutrition in health and disease. Lea and Febiger, Philadelphia 1980
- Gravensen K J. Vitamin A and carotene in serum from healthy Danish subjects. Scand. J. Clin. Lab. Invest. 1967; 20: 57–62
- Harril I, Cervone N. Vitamin status of older women. Am. J. Clin. Nutr. 1977; 30: 431–440
- Hinds M W, Kolonel L N, Hakin J H, Lee J. Dietary vitamin A, carotene, vitamin C and risk of lung cancer in Hawaii. Am. J. Epidemiol. 1984; 119: 227–237
- Jagadeesan V, Reddy V. Interrelationship between vitamin E and A: a clinical study. Clin. Chim. Acta 1978; 90: 71–74
- Leitner Z A, Moore T, Sharman I M. Vitamin A and vitamin E in human blood. 2. Levels of vitamin E in the blood of British men and women. 1952–57. Br. J. Nutr. 1960; 14: 281–287
- Moore T. The effect of vitamin E deficiency on the vitamin A reserves of the rat. Biochem. J. 1940; 34: 1321–1328
- Olson J A. Recommended dietary intakes (RDI) of vitamin A in humans. Am. J. Clin. Nutr. 1987; 45: 704–716
- Salonen J T, Salonen R, Lappetelaipen R, Maenpaa P H, Alfahan G, Puska P. Risk of cancer in relation to serum concentrations of selenium and vitamins A and E: matched case-control analysis of prospective data. Br. Med. J. 1985; 290: 417–420
- Sklan D. Vitamin A absorption and metabolism in the chick: response to high dietary intake and to tocopherol. Br. J. Nutr. 1983; 50: 401–407
- Simpson K L. Relative value of carotenoids as precursors of vitamin A. Proc. Nutr. Soc. 1983; 42: 7–17
- Wald N, Idle M, Boreham J, Bailey A. Vitamin A and subsequent risk of cancer: preliminary results of a prospective study. Lancet 1980; ii: 813–815
- Wald N J, Boreham J, Hayward J L, Bulbrook R D. Plasma retinol, β-carotene and vitamin E levels in relation to the future risk of breast cancer. Br. J. Cancer 1984; 49: 321–324
- Willett W C, Stampfer M J, Underwood B A, Taylor J O, Hannekens C H. Vitamin A, E, and carotene: effects of supplementation on their plasma levels. Am. J. Clin. Nutr. 1983; 38: 559–566
- Willett W C, Polk B F, Underwood B A, Stampfer M J, Pressei S, Rosner B, Taylor J O, Schneider K, Hames C G. Relation of serum vitamins A and E and carotenoids to the risk of cancer. N. Engl. J. Med. 1984; 310: 430–434
- Ziegler R G, Mason T J, Stemhagen A, Hoover R, Schoenberg J B, Gridley G, Virgo P W, Altman R, Fraumeni J F, Jr. Dietary carotene and vitamin A and risk of lung cancer among white men in New Jersey. J. Natl. Cancer Inst. 1984; 73: 1429–1435