Primary biliary cirrhosis and cancer risk: a systematic review and meta-analysis.

  title={Primary biliary cirrhosis and cancer risk: a systematic review and meta-analysis.},
  author={Yan Liang and Zaixing Yang and Ren-qian Zhong},
  volume={56 4},
UNLABELLED Several studies have indicated that primary biliary cirrhosis (PBC) may be associated with increased risk of some cancers, but the results are controversial. We conducted a systematic review of studies to examine the association of PBC with cancer risk by meta-analysis. We searched the PubMed and EMBASE databases for English-language studies published before November 2011. Studies were included if they reported relative risk estimates with 95% confidence intervals (CIs) or related… CONTINUE READING
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The Newcastle-Ottawa scale (NOS) for assessing the quality of nonrandomized studies in meta-analysis

  • GA Wells, B Shea, D O’Connell, J Peterson, V Welch, M Losos
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