Fig. 2From: Three nested randomized controlled trials of peer-only or multiple stakeholder group feedback within Delphi surveys during core outcome and information set developmentFlow diagram for colorectal cancer surgery, breast reconstruction and oesophageal cancer surgery core sets. aWhilst 45 patients randomized to the dual feedback group returned a questionnaire, one patient only completed items related to other aspects of the research not reported here; all round 2 scores were missingBack to article page