Biccard, Bruce M A meta-analysis of the efficacy of preoperative surgical safety checklists to improve perioperative outcomes. [electronic resource] - South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde May 2016 Publication Type: Journal Article ISSN: 0256-9574 Standard No.: 10.7196/SAMJ.2016.v106i6.9863 doi