1. Merck Sharp & Dohme LLC., a subsidiary of Merck & Co., Inc., Rahway, NJ.
2. Analysis Group, Inc., Boston, MA.
3. Exelixis Inc., Alameda, CA.
4. Janssen Pharmaceutical Companies of Johnson & Johnson, Horsham, PA.
5. Student at School of Medicine, Washington University, St Louis, MO.
6. Perelman School of Medicine, University of Pennsylvania, Philadelphia.