Peter J. H. Scott is an Assistant Professor in the Department of Radiology at the University of Michigan Medical School. Dr. Scott edited Linker Strategies in Solid-phase Organic Synthesis (also from Wiley) and is the series editor for the Wiley Series on Solid Phase Organic Syntheses. Brian G. Hockley is Radiopharmaceutical Quality Manager at the University of Michigan Medical School, where he works with Michael Kilbourn on radiopharmaceutical research and development. Mr. Hockley has co-authored several articles and a chapter in Linker Strategies in Solid-phase Organic Synthesis (also from Wiley).