[1] Pfizer Res Technol Ctr, Cambridge, MA 02139 USA
[2] Genentech Inc, San Francisco, CA 94080 USA
[3] Blue Sky Biotech Inc, Worcester, MA 01605 USA
[4] Novartis Inc, Cambridge, MA 02139 USA
[5] Vertex, Cambridge, MA 02139 USA
[6] Pfizer Global Res, Groton, CT 06340 USA
[7] Monsanto Co, St Louis, MO 63167 USA