1. UT M.D. Anderson Cancer Ctr, Houston, TX; Winship Cancer Institute, Emory Univ, Atlanta, GA; Hosp Grosshansdorf, Grosshansdorf, Germany; McGill Univ, Montreal, PQ, Canada; Asklepios Fachklinken Munchen Gauting, Munich, Germany; Dartmouth Medcl Sch, Lebanon, NH; Ligand Pharmaceuticals, San Diego, CA