Annals of Internal Medicine (2012) - Comments
pubmed: 22868835  doi: 10.7326/0003-4819-157-3-201208070-00473  issn: 1539-3704  issn: 0003-4819 

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Anne W.S. Rutjes, Peter Jüni, Bruno R. Da Costa, Sven Trelle, Eveline Nüesch, Stephan Reichenbach