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. 2015 Dec 31;2015(12):CD009206. doi: 10.1002/14651858.CD009206.pub2

Gray 2001.

Methods Prospective RCT
Participants 97 participants; 51 (intervention) 46 (control)
Interventions RSL (intervention) versus WGL (control); no crossover
Outcomes Successful localization; excision; margins
Notes Source of funding not stated; mixed pathology
Risk of bias
Bias Authors' judgement Support for judgement
Random sequence generation (selection bias) Unclear risk Not reported
Allocation concealment (selection bias) Unclear risk Not reported
Blinding of participants and personnel (performance bias) 
 All outcomes Low risk Not blinded, but outcome unlikely to be influenced (acceptable as per surgical design)
Blinding of outcome assessment (detection bias) 
 All outcomes Low risk Not blinded, but outcome unlikely to be influenced (acceptable as per surgical design)
Incomplete outcome data (attrition bias) 
 All outcomes High risk Five participants excluded due to missing data
Selective reporting (reporting bias) Low risk Only malignant lesions included in analysis for rate of involved margins
Other bias High risk Mixed Pathology