DOI:
10.1055/s-00000012
Endoscopy
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References
Higgins JPT, Altman DG, Sterne JAC.
Cochrane handbook for systematic reviews of interventions, version 5.0.1.
Available at:
http://handbook.cochrane.org/chapter_8/8_assessing_risk_of_bias_in_included_studies.htm Accessed: May 30, 2016
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