1. Otsuka Holdings Co. Ltd.
2. Novartis Pharmaceuticals
3. Genentech Inc.
4. Johnson & Johnson
5. Merck & Co. Inc.
6. Sanofi S.A.
7. AstraZeneca plc
8. Bristol Myers Squibb Company
9. GlaxoSmithKline plc
10. AbbVie Inc.