1. Division of Pharmacoepidemiology and Pharmacoeconomics; Harvard Medical/Brigham & Women's Hospital; Boston Massachusetts USA
2. Corporate Department Global Epidemiology; Boehringer Ingelheim; Ingelheim Germany
3. Aetion, Inc.; New York New York USA
4. Department of Epidemiology; University of North Carolina at Chapel Hill; Chapel Hill North Carolina USA
5. Hannover Medical School; Hannover Germany