1. J. Versieck and R. Cornelis,Trace Elements in Human Plasma or Serum, CRC Press, FL, 1989.
2. G. V. Iyengar, W. E. Kollmer, and H. J. M. Bowen,The Elemental Composition of Human Tissues and Body Fluids, Verlag Chemie, Weinheim, FRG, 1978.
3. E. Frieden,J. of Chem. Education 62, 917 (1985).
4. M. Hayashi,Tokushima, J. Exp. Med. 37, 103 (1990).
5. F. Marumo, Y. Tsukamoto, S. Iwanami, T. Kishimoto, and S. Yamagami,Nephron 38, 267 (1984).