1. Aikawa, J. K. (1963). The Role of Magnesium in Biological Processes; C. C. Thomas. Springfield.
2. Baldwin, D., Robinson, P. K., Zierler, K. L. and Liiienthal, J. L. Jr. (1952). J. Clin. Invest. 31, 850.
3. Chutkow, J. G. (1965). J. Lab. Clin. Med. 63, 80.
4. Breen, M. and Marshall, R. T. (1966) J. Lab.Clin. Med. 68, 701.
5. Cooke, R. E., Segar, W. E., Cheek, D. B., Coville, F. E. and Darrow, D. C. (1952). J. Clin. Invest. 31, 798.