DCK and neoplasm: We thank Tanya Stoyanova for assistance with experiments; Wayne Austin for assistance with FACS and dCK KO mice; Christina Brown for assistance with A-T cells and Western blots; Dorthe Schaue for assistance with tumor irradiation; Robert Schiestl and Zorica Scuric for providing plasmids and assistance with plasmid recombination assay; Francoise Bontemps for providing pSer74 dCK antibody; Richard Gatti and William McBride for insightful discussion; David Stout and Waldemar Ladno for microPET/CT imaging; and the cyclotron group for the production of PET probes.