A Message from Dr. William R. Sawyer
Chief Toxicologist, TCAS, LLC
"TCAS is committed to providing our clients with the full benefit of our toxicological
expertise. The areas listed here represent only a small part of our experience and
capabilities. Please call our office for answers to questions and concerns."
This is an informational and instructional website devoted to toxicology. It presents
both original and edited public-domain content compiled as a useful educational resource.
References and footnotes have been included wherever possible and image sources
have been cited where appropriate. Although most pages can be printed or downloaded
as PDF files (and we encourage you to make constructive use of our information),
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