Erratum ======= [In “Volumetric Analysis of 18F-FDG PET in Glioblastoma Multiforme: Prognostic Information and Possible Role in Definition of Target Volumes in Radiation Dose Escalation,” by Tralins et al. (J Nucl Med. 2002;43:1667–1673), the name of the sixth author was incorrect. The correct name is Robert C. Rostomily. The authors regret the error.](http://jnm.snmjournals.org/lookup/volpage/43/1667)