Objective: To explore the advantages and disadvantages of different retraction devices used for laparoscopic surgery … search strategy focused on laparoscopic studies that had as primary objective the test of a retraction device. Studies were … magnetic retractors, the Endograb, the VaroLift a Laparoscope holder and a Retraction sponge. While the V-List and Trans …

single retraction triggers citation losses through an author's prior body of work. Compared to closely-matched control papers …