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Systems for grading the quality of evidence and the strength of recommendations I: Critical appraisal of existing approaches The GRADE Working Group

David Atkins, Martin Eccles, Signe Flottorp, Gordon H Guyatt, David Henry, Suzanne Hill, Alessandro Liberati, Dianne O'Connell, Andrew D Oxman, Bob Phillips, Holger Schünemann, Tessa Tan-Torres Edejer, Gunn E Vist*, John W Williams and The GRADE Working Group

BMC Health Services Research 2004, 4:38  doi:10.1186/1472-6963-4-38

Pre-publication versions of this article and reviewers' reports

Original Submission - Version 1 Manuscript 23 Jan 2004
Reviewer's Report Joseph WATINE 25 Mar 2004
Resubmission - Version 2 Author's comment 09 Nov 2004
Resubmission - Version 3 Manuscript 09 Nov 2004
Resubmission - Version 4 Manuscript Author's comment 13 Dec 2004
Published 22 Dec 2004

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