Circular pOlyethylene drape in preVEntion of suRgical site infection (COVER trial): study protocol for a randomised controlled trial.
Ri Na YooHyung Jin KimJae Im LeeWon-Kyung KangBong-Hyeon KyeChang Woo KimSung Uk BaeSoomin NamByung Mo KangPublished in: BMJ open (2020)
NCT03170843.