1. Program in Biophysics, Stanford University, Palo Alto, California 94305, United States
2. Computational and Structural Chemistry, Merck & Co., Inc., South San Francisco, California 94080, United States
3. Pharmacokinetics, Pharmacodynamics, and Drug Metabolism, Merck & Co., Inc., Kenilworth, New Jersey 07065, United States
4. Department of Bioengineering, Stanford University, Palo Alto, California 94305, United States