1. Shoichiro Ono - Principal Investigator

2. Joseph Opferman - Principal Investigator

3. Joost Oppenheim - Principal Investigator

4. Patricia Opresko - Principal Investigator

5. Daniel Oprian - Principal Investigator

6. Moshe Oren - Principal Investigator

7. Alessandro Ori - Principal Investigator

8. Stuart Orkin - Principal Investigator

9. Cesare Orlandi - Principal Investigator

10. David Ornitz - Principal Investigator

11. Terry Orr-Weaver - Principal Investigator

12. Sandra Orsulic - Principal Investigator

13. Paul Ortiz de Montellano - Principal Investigator

14. Diego Orzaez - Principal Investigator

15. Mark Osborn - Principal Investigator

16. Timothy Osborne - Principal Investigator

17. Anne Osbourn - Principal Investigator

18. Matthew Oser - Principal Investigator

19. Robert Oshima - Principal Investigator

20. Pavel Osten - Principal Investigator