The authors wish to retract the article entitled “Initial Analyses of Colon Cancer–Specific Antigen (CCSA)-3 and CCSA-4 as Colorectal Cancer–Associated Serum Markers,” which was published in the June 15, 2007, issue of Cancer Research (1).
As the authors re-reviewed the data presented in the article, they identified differences between some of the plate reader values and those that were reported in the article. For some of the data, the values were indeed from the plate reader data, whereas the source of other values was not apparent. Therefore, the authors believe that the article may contain data falsification. Furthermore, the values were not blanked. The authors feel that the inconsistencies in the data collection and recordation warrant retraction of the article.
Six of the 7 authors agreed to this Retraction. Attempts on the part of the journal office to contact the first author, Eddy S. Leman, were unsuccessful.
Robert E. Schoen
Division of Gastroenterology, Hepatology, and Nutrition and Department of Epidemiology, University of Pittsburgh and the University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania
Joel L. Weissfeld
Department of Epidemiology, University of Pittsburgh and the University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania
Lori J. Sokoll, Daniel W. Chan
The Brady Urological Institute and Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland
Grant W. Cannon, Robert H. Getzenberg
The Brady Urological Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland
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