Design, Synthesis, and Biological Characterization of a Caspase 3/7 Selective Isatin Labeled with 2-[18F]fluoroethylazide - Smith, G; Glaser, M; Perumal, M; Nguyen, Q-D; Shan, B; Arstad, E; Aboagye, EO (JOURNAL OF MEDICINAL CHEMISTRY, 2008)