1. Spooner Bioanalytical Solutions Ltd, Hertford, UK & School of Life & Medical Sciences University of Hertfordshire, UK
2. Merck & Co. Inc., Department of Pharmacokinetics, Pharmacodynamics & Drug Metabolism, West Point, PA 19486, USA
3. New Objective Inc, 2 Constitution Way, Woburn, MA 01801, USA
4. Lilly Research Laboratories, Eli Lilly & Company, Indianapolis, IN, USA
5. Milestone Development Services, PO Box 178, Newtown, PA 18940-0178, USA