1. Methods for Determining Lead in Air and in Biological Materials, Am, Public Health Assoc. (1944).
2. “Normal Laboratory Values-Case Records of Massachusetts GeneralHospital,” New Eng. J. Med. 268:1462 (1963).
3. E. Berman, Am. J. Clin. Pathol. 36: 549 (1961).
4. J. Cholak, D.M. Hubbard, and R. E. Burkey, J. Ind. Hyg. Tox. 30: 59 (1948).
5. Hiromu Murata, J. Chem. Soc. Japan 72:863 (1951), in: Chem. Abstr, 46 6696C (1952).