Davis J M, Svendsgaard D J
Nature. 1987;329(6137):297-300. doi: 10.1038/329297a0.
A group of independent epidemiological studies shows that fetal exposure to levels of lead previously considered safe is linked to impairment of infant mental development.
一组独立的流行病学研究表明,胎儿接触以前认为安全的铅水平与婴儿智力发育受损有关。