1. Department of Heart Diseases; Medical University, Clinical Military Hospital; Weigla 5, 50-891 Wroclaw Poland
2. Kerckhoff-Klinik; Bad Nauheim Germany
3. Duke University Medical Center; Durham CA USA
4. NovaCardia; San Diego CA USA
5. Momentum Research; Durham NC USA
6. San Francisco VAMC; San Francisco CA USA
7. Brigham and Women's Hospital; Boston MA USA
8. Merck & Co., Inc.; Upper Gwynedd PA USA
9. Merck & Co., Inc.; Rahway NJ USA
10. Cardiology Division, Department of Experimental and Applied Medicine; University of Brescia; Brescia Italy