1. Department of Radiation Oncology, Rex Cancer Center, 4420 Lake Boone Trail, Raleigh, NC 27607, USA and, Medical Director, Sicel Technologies, Inc., 380 Gateway Center Boulevard, Suite 308, Morrisville, NC 27560, USA.
2. Medical Physicist, Sicel Technolgies, Inc., 3800 Gateway Center Boulevard, Suite 308, Morrisville, NC 27560, USA.