The authors of the article titled “Comparison of (+)-11C-McN5652 and 11C-DASB as Serotonin Transporter Radioligands Under Various Experimental Conditions” (J Nucl Med. 2002;43:678–692) accidentally omitted 2 of the authors from the Acknowledgments section. The names of those authors are Jie Yuan, MD, and George Hatzidimitriou, MS. The authors regret the error.