Fig. 1From: The impact of retractor SPONGE-assisted laparoscopic surgery on duration of hospital stay and postoperative complications in patients with colorectal cancer (SPONGE trial): study protocol for a randomized controlled trialOverview study design and treatment allocation. PLCRC, prospective cohort of colorectal cancer patients; SPONGE trial, randomized controlled trial for clinical evaluation of an intraoperative retractor SPONGE in laparoscopic colorectal surgeryBack to article page