1. Department of Radiation Oncology, Henry Ford Health System, Detroit, MI 48202.
2. Department of Urology, Henry Ford Health System, Detroit, MI 48202.
3. Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, CO 80523.
4. Department of Diagnostic Radiology, Henry Ford Health System, Detroit, MI 48202.
5. CDE Dosimetry Services, Knoxville, TN 37922.