to resort to trickery to get repeat prescriptions, but it wasn't too difficult, and as I had no underworld contacts, I had to get my supply In due course my mental and physical health deteriorated and I was forced to tell my tale of woe to my doctor, who calmly scrawled another prescription for Duraphet instead. After four months in a mental hospital 1 was freed of my hell. That was two years a...

T. Bredfeldt Texas Commission on Environmental Quality, MC-168, P.O Box 13087, Austin, TX 78711-3087, USA e-mail: [email protected] Abstract Hazard identification is considered an early step in the risk assessment process. The primary goal of this step is to determine whether exposure to a chemical is likely to cause a specific adverse health effect in humans. The process of hazard ide...