摘要：Biological effects of low-level exposures (BELLE) may be very important in characterizing the potential health risks of environmental pollutants. Before some features of BELLE, such as effects that may be modulated by adaptive or defense mechanisms, can be taken into greater consideration in U.S. Environmental Protection Agency risk assessments, however adequate information on a toxicant's mode of action and answers to other questions are needed. Full text Full text is available as a scanned copy of the original print version. Get a printable copy (PDF file) of the complete article (518K), or click on a page image below to browse page by page. Links to PubMed are also available for Selected References . 379 380 381
