[1] Ligand Pharmaceut Inc, Med Chem, San Diego, CA 92121 USA
[2] Ligand Pharmaceut Inc, Pharmacol, San Diego, CA 92121 USA
[3] Ligand Pharmaceut Inc, New Leads Discovery, San Diego, CA 92121 USA
[4] Ligand Pharmaceut Inc, Sci & Technol, San Diego, CA 92121 USA