Article Text
Letter
Data selection flaw
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Lutgens et al have published an important paper (Gut 2008;57:1246–51). They concluded that colorectal cancer occurred earlier than expected and that many cancers are missed if patients are followed according to follow-up protocols. However, these data should be interpreted with caution. For the sake of the study they carried out a PALGA …
Footnotes
Competing interests: None.
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2009 BMJ Publishing Group and British Society of Gastroenterology