1. Department of Chemistry, Clarkson University, Potsdam, New York 13699-5810, Department of Radiological Health Sciences, Colorado State University, Ft. Collins, Colorado 80523, University of Kansas Medical Center, Kansas City, Kansas 66160-7417, Department of Dermatology, University of California at San Francisco, San Francisco, California 94143-0750, Life Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-0117, Mineral Resources Program, U.S. Geological Survey, Reston, Virginia...