1. Medical Department, Grupo Tecnimede, Rua da Tapada Grande 2, Abrunheira, Portugal
2. Department of Pharmacology and Therapeutics, Universidad Autonoma de Barcelona
3. PharmaNet Canada, Inc., René-Lévesque Ouest Québec (Québec) Canada
4. Anapharm Europe S.L. c/ Encuny 22, Barcelona Spain