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  Vol. 301 No. 18, May 13, 2009 TABLE OF CONTENTS
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Retraction: Cheng B-Q, et al. Chemoembolization combined with radiofrequency ablation for patients with hepatocellular carcinoma larger than 3 cm: a randomized controlled trial. JAMA. 2008;299(14):1669-1677.

Catherine D. DeAngelis, MD, MPH; Phil B. Fontanarosa, MD, MBA

JAMA. 2009;301(18):1931. Published online April 20, 2009 (doi:10.1001/jama.2009.640).

Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.

In the April 9, 2008, issue of JAMA, an article entitled "Chemoembolization Combined With Radiofrequency Ablation for Patients With Hepatocellular Carcinoma Larger Than 3 cm: A Randomized Controlled Trial" was published by Dr Cheng and colleagues.1 We subsequently received information that raised concerns about the integrity of the data and the veracity of the report. We conducted an extensive internal investigation into these concerns, contacted the primary author of the study, and also notified Shandong University, the authors' institution, expressing our concerns about the conduct of the trial and the integrity of the data. Based on the responses we received from the authors, we continued to have concerns about the validity and integrity of the study, and therefore requested a formal investigation by the authors' institution.

On March 23, 2009, we received a report from Yun Zhang, MD, PhD, . . . [Full Text of this Article]

Author Affiliations: Dr DeAngelis (cathy.deangelis@jama-archives.org) is Editor in Chief and Dr Fontanarosa is Executive Deputy Editor, JAMA.



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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES

Resolving Unreported Conflicts of Interest
DeAngelis and Fontanarosa
JAMA 2009;302:198-199.
FULL TEXT  





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