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Systems for grading the quality of evidence and the strength of recommendations II: Pilot study of a new system

David Atkins, Peter A Briss, Martin Eccles, Signe Flottorp, Gordon H Guyatt, Robin T Harbour, Suzanne Hill, Roman Jaeschke, Alessandro Liberati, Nicola Magrini, James Mason, Dianne O'Connell, Andrew D Oxman, Bob Phillips, Holger Schünemann, Tessa TT Edejer, Gunn E Vist*, John W Williams and The GRADE Working Group

BMC Health Services Research 2005, 5:25 doi:10.1186/1472-6963-5-25

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