1. F. Hoffmann‐La Roche AG Basel Switzerland
2. Merck & Co Kenilworth New Jersey USA
3. GlaxoSmithKline (GSK) Collegeville Pennsylvania USA
4. Boehringer Ingelheim Pharma GmbH & Co KG Biberach an der Riss Germany
5. Johnson & Johnson Spring House Pennsylvania USA
6. Biogen Cambridge Massachusetts USA