1. Department of Investigational Cancer Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
2. Barbara Ann Karmanos Cancer Institute, Wayne State University, Detroit, Michigan, USA
3. Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
4. Merck Serono S.A., Geneva, Switzerland
5. Cancer Therapy Evaluation Program, National Institutes of Health/National Cancer Institute, Rockville, Maryland, USA
6. Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
7. Hematology-Oncology Division, University of California San Diego Moores Cancer Center, La Jolla, California, USA