1. Department of Pharmaceutical Chemistry, The University of Kansas, 2093 Constant Avenue, Lawrence, Kansas 66047, United States
2. Department of Pharmacology and Therapeutics, University of Manitoba, 753 McDermot Avenue, Winnipeg, MB R3E 0T6, Canada
3. Department of Pharmaceutical Development, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, United States