• Grading quality of evidence and strength of recommendations. 

      Atkins, David; Best, Dana; Briss, Peter A; Eccles, Martin; Falck-Ytter, Yngve; Flottorp, Signe; Guyatt, Gordon H; Harbour, Robin T; Haugh, Margaret C; Henry, David; Hill, Suzanne; Jaeschke, Roman; Leng, Gillian; Liberati, Alessandro; Magrini, Nicola; Mason, James; Middleton, Philippa; Mrukowicz, Jacek; O'Connell, Dianne; Oxman, Andrew David; Phillips, Bob; Schünemann, Holger J; Edejer, Tessa Tan-Torres; Varonen, Helena; Vist, Gunn Elisabeth; Williams, John W; Zaza, Stephanie (Journal article; Peer reviewed, 2004-06-19)
      Users of clinical practice guidelines and other recommendations need to know how much confidence they can place in the recommendations. Systematic and explicit methods of making judgments can reduce errors and improve ...
    • Systems for grading the quality of evidence and the strength of recommendations I: critical appraisal of existing approaches The GRADE Working Group. 

      Atkins, David; Eccles, Martin; Flottorp, Signe; Guyatt, Gordon H; Henry, David; Hill, Suzanne; Liberati, Alessandro; O'Connell, Dianne; Oxman, Andrew David; Phillips, Bob; Schünemann, Holger; Edejer, Tessa Tan-Torres; Vist, Gunn Elisabeth; Williams, John W (Journal article; Peer reviewed, 2004-12-22)
      BACKGROUND: A number of approaches have been used to grade levels of evidence and the strength of recommendations. The use of many different approaches detracts from one of the main reasons for having explicit approaches: ...