1. Pietro Spanu - Principal Investigator

2. Konstantin Sparrer - Principal Investigator

3. Paul Spearman - Principal Investigator

4. David Spencer - Principal Investigator

5. Sabrina Spencer - Principal Investigator

6. Ivo Spiegel - Principal Investigator

7. Bruce Spiegelman - Principal Investigator

8. Tobias Spielmann - Principal Investigator

9. Maria Spies - Principal Investigator

10. Martin Spiess - Principal Investigator

11. Elias Spiliotis - Principal Investigator

12. Jessica Spinelli - Principal Investigator

13. David Spray - Principal Investigator

14. Linda Spremulli - Principal Investigator

15. Michael Springer - Principal Investigator

16. Timothy Springer - Principal Investigator

17. David Sprinzak - Principal Investigator

18. John Spudich - Principal Investigator

19. Anne Spurkland - Principal Investigator

20. Massimo Squatrito - Principal Investigator