1. Albert Einstein College of Medicine Bronx New York 10461 USA
2. University of Texas Health Science Center San Antonio Texas 78284-7877 USA
3. Zymogenetics Inc. Seattle Washington 98102 USA
4. University of California Irvine California 92612 USA
5. HHMI/Harvard Medical School Boston Massachusetts 02115 USA
6. Genentech Inc. South San Francisco California 94080-4990 USA