Fig. 9From: Intraoperative and postoperative feasibility and safety of total tubeless, tubeless, small-bore tube, and standard percutaneous nephrolithotomy: a systematic review and network meta-analysis of 16 randomized controlled trialsForest plots for visual analogue scale pain score using pairwise meta-analysis. a Standard versus total tubeless PCNLs, and b standard versus tubeless PCNLs, SD, standard deviation; MD, Mean difference; CI, confidence interval; W, WeightBack to article page