1. Department of Pharmacology & Pharmaceutical Sciences, University of Southern California, Los Angeles, California 90089-9121, United States
2. Ligand Insight, LLC, Post Office Box 5731, Pasadena, California 91117, United States
3. Isis Pharmaceuticals Inc., 1896 Rutherford Road, Carlsbad, California 92008-7326, United States
4. Neumedicines Inc., 2708 Foothill Boulevard, Suite #403, La Crescenta, California 91214, United States