1. F. H. Nielsen and H. E. Sauberlich,Proc. Soc. Exp. Biol. Med. 134, 845–849 (1970).
2. R. Cammack,Adv. Inorg. Chem. 32, 297–333 (1988).
3. F. H. Nielsen, inClinical, Biochemical and Nutritional Aspects of Trace Elements, Prasad, A.S., ed., Alan R. Liss, 1982, New York, pp. 379–404.
4. {au{gnF. H.} {fnNielsen}},Trace Elements in Human and Animal Nutrition, vol. 1, Mertz, W., ed., Academic, San Diego, pp. 245–273.
5. F. H. Nielsen, T. R. Shuler, T. G. McLeod, and T. J. Zimmerman,J. Nutr. 114, 1280–1288 (1984).