1. Division of Medical Oncology, University of Colorado Hospital, Aurora, CO 80045, USA
2. Division of Oncology, Siteman Cancer Center, Washington University in St. Louis, MO 63110, USA
3. Envision Pharma Group, Philadelphia, PA 19109, USA
4. Pfizer, Inc., NY 10017, USA
5. Pfizer, Inc., La Jolla, CA 92121, USA
6. University of Iowa, Holden Comprehensive Cancer Center, Iowa City, IA 52242, USA