1. UCL Institute of Liver and Digestive Health; Royal Free Hospital; University College London; London UK
2. Mallinckrodt Pharmaceuticals; Bedminster NJ USA
3. Pharmerit International; Berlin Germany
4. Pharmerit International; Bethesda MD USA
5. Pharmerit International; Rotterdam The Netherlands
6. AplusA; Lyon France
7. Division of Nephrology; Department of Medicine; Massachusetts General Hospital; Boston MA USA