1. Pfizer Global Research Development, Groton, Connecticut, USA
2. GlaxoSmithKline, Hertfordshire, United Kingdom
3. GlaxoSmithKline, Research Triangle Park, North Carolina, USA
4. Department of Pathology, Lilly Research Laboratories, Indianapolis , Indiana, USA
5. Global Pharmacovigilance and Epidemiology, Bristol-Myers Squibb, Wallingford, Connecticut, USA
6. Health and Environmental Sciences Institute, Washington, D.C., USA