1. Discovery Chemistry, Merck & Co. Inc., South San Francisco, California 94080, United States
2. Discovery Biologics, Merck & Co. Inc., South San Francisco, California 94080, United States
3. Modeling and Informatics, Merck & Co. Inc., South San Francisco, California 94080, United States
4. Discovery Oncology, Merck & Co. Inc., South San Francisco, California 94080, United States
5. External Discovery Chemistry, Merck & Co. Inc., South San Francisco, California 94080, United States