Fig. 4From: A network meta-analysis of therapeutic outcomes after new image technology-assisted transurethral resection for non-muscle invasive bladder cancer: 5-aminolaevulinic acid fluorescence vs hexylaminolevulinate fluorescence vs narrow band imagingFunnel plots on recurrence (a) and progression rates (b). Little evidence of publication bias was demonstrated by visual or statistical examination of the funnel plotsBack to article page