9[1]Telisman S, Cvitkovic P, Jurasovic J, et al. Semen quality and reproductive endocine function in relation to biomarkers of lead, cadmium, zinc, and copper in men [ J ]. Environ Health Perspect,2000, 108(1) :45 - 53.
10[3]Wadi SA, Ahmad G. Effects of lead on the male reproductive system in mice[J] .J Toxicol Environ Health A, 1999, 56(7) :513 -521.
