Discontinuation and non-publication of surgical randomised controlled trials: observational study

To determine the rate of early discontinuation and non-publication of randomised controlled trials involving patients undergoing surgery.Cross sectional observational study of registered and published trials.Randomised controlled trials of interventions in patients undergoing a surgical procedure.The ClinicalTrials.gov database was searched for interventional trials registered between January 2008 and December 2009 using the keyword "surgery"....