1. Research and Development. Alpharma, Baltimore. MD; at the time of this study he was Section Head, Analytical Research and Development, DuPont Critical Care, Waukegan, IL
2. Pharmaceutical Research and Development, DuPont Merck Pharmaceutical Company
3. DuPont Critical Care
4. Fujisawa USA, Melrose Park, IL
5. DuPont Merck Pharmaceutical Company