Introduction Biotechnology has established itself as a mainstay ◇ in pharmaceutical research and development, and new products will enter the market at an increasing pace in the future ◆·Asof2003, it was estimated that more than370 s biotechnology products were being developed by 144 companies and the national cancerinstitute4 Introduction • Biotechnology has established itself as a mainstay in pharmaceutical research and development, and new products will enter the market at an increasing pace in the future. • As of 2003, it was estimated that more than 370 biotechnology products were being developed by 144 companies and the National Cancer institute